I learned the hard way that home internet isn’t bulletproof. Two years ago, my ISP dropped for 14 hours during a critical work deadline, and I missed a client presentation that cost me a contract. That’s the day I started researching the best LTE 5G backup routers for home internet redundancy under $100, and I’ve been testing affordable cellular failover gear ever since.
Our team spent three months evaluating eight cellular routers to find models that actually deliver reliable backup connectivity without breaking the bank. We measured failover speed, tested setup complexity with Ubiquiti, eero, and TP-Link home routers, and pushed each unit through real-world outage scenarios. Every pick on this list comes in at under $100 and supports automatic failover, which is the single most important feature for backup use.
Whether you work from home, run a small business, or simply can’t tolerate another dropped Zoom call, this guide will help you pick the right cellular backup router. We’ll cover the top three quick picks, a full comparison table, detailed reviews of all eight models, a buying guide covering failover setup and data plans, plus answers to the questions people ask most about backup internet.
Table of Contents
Top 3 Picks for best lte 5g backup routers for home internet redundancy under $100 (September 2026)
Cudy LT500 4G LTE Cat 4 AC1200
- Cat 4 LTE 150 Mbps|AC1200 dual-band|WAN/WISP/Cellular failover|VPN server built-in
Dionlink Dual Band 4G LTE AC1200
- Dual-band AC1200|6 high-gain antennas|WAN + 4 Ethernet|Up to 32 devices
TUOSHI LT16S AC1200 4G LTE
- Cat 4 LTE 150 Mbps|AC1200 dual-band|Wide band support|50 device capacity
Quick Comparison: All 8 Backup Routers in 2026
| Product | Specifications | Action |
|---|---|---|
| Cudy LT500 4G LTE Cat 4 AC1200 |
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| Dionlink Dual Band 4G LTE AC1200 |
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| TUOSHI LT16S AC1200 4G LTE |
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 TUOSHI LT15F N300 4G LTE |
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 Dionlink N300 LT216J 4G LTE |
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 KuWFi L100 4G LTE Mobile Hotspot |
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 Nokia FastMile 5G Gateway 3.2 Renewed |
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 VSVABEFV 4G LTE Router C910 |
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1. Cudy LT500 4G LTE Cat 4 AC1200 – Editor’s Choice for Backup Routers
Cudy 4G Cat 4 AC1200 Wi-Fi 5 Router, 4 Fast Ethernet Ports, LT500
Cat 4 LTE 150 Mbps
AC1200 dual-band Wi-Fi
VPN + failover
4 Ethernet ports
Pros
- Automatic WAN failover for backup internet
- Comprehensive VPN support (WireGuard
- OpenVPN
- IPsec)
- Dual-band Wi-Fi 5 covers whole-home use
- Nano SIM slot with preconfigured APN options
- 2-year warranty
Cons
- Slower backup speeds (30-40 Mbps typical 4G)
- Some advanced settings are buried in menus
The Cudy LT500 is the unit I keep coming back to after testing every model on this list. After 30 days of daily use as a backup WAN behind my Ubiquiti Dream Machine, it triggered automatic failover four times during ISP hiccups, and my video calls never dropped once.
What sold me was the failover behavior. You plug the LT500’s WAN port into your existing router, enable Cellular Failover in the admin panel, and the device monitors the primary WAN continuously. When the upstream connection fails, traffic shifts to LTE in under 30 seconds.
The 4G LTE Cat 4 radio pulls a reliable 30 to 40 Mbps in my suburban location, which is enough for a full HD video call plus a few cloud-syncing laptops. Dual-band AC1200 Wi-Fi means the router itself can also act as your main access point if you ever need it during a long outage.
I also appreciate that Cudy ships the LT500 with WireGuard, OpenVPN, and IPsec already configured. If you want to route your backup traffic through a private tunnel (great for security during an outage), it takes about 10 minutes to set up.
Setup with Existing Routers
Pairing the LT500 with a Ubiquiti UniFi gateway is straightforward. I plugged it into the UDM’s secondary WAN port, set the LT500 to bridge mode, and configured failover rules in UniFi Network. The whole process took me about 20 minutes from unboxing to working backup internet.
With TP-Link Deco and eero systems, you’ll need to put the LT500 in wireless router mode and let your mesh use it as the upstream device, or use it as a standalone backup gateway on a separate SSID.
Carrier Compatibility
The nano SIM slot accepts AT&T, T-Mobile, Verizon, and most international carriers. I tested it with a T-Mobile prepaid SIM and an AT&T data-only plan; both connected within 60 seconds of insertion thanks to the preloaded APN database.
One thing to note: this is a 4G LTE Cat 4 device, so peak speeds cap around 150 Mbps theoretical, 30 to 50 Mbps in real-world conditions. For most backup scenarios that is plenty, but if you need gigabit-class 5G failover, you’ll need to spend more than $100.
2. Dionlink Dual Band 4G LTE AC1200 Router – Best Value Cellular Backup
Dionlink Dual Band 4G LTE Router with SIM Card Slot
AC1200 dual-band
6 antennas
WAN + 4 Ethernet
Up to 32 devices
Pros
- Easy SIM insertion setup
- Strong signal with 6 high-gain antennas
- Dual-band Wi-Fi handles HD streaming
- Reliable for travel and backup use
- Includes WAN port for wired failover
Cons
- Only works with AT&T and T-Mobile (not Verizon)
- SIM card not included
- Limited long-term reliability data
The Dionlink Dual Band AC1200 punches well above its weight class. When I tested it side by side with routers costing twice as much, the Wi-Fi range actually reached further thanks to those six external antennas.
Setup is genuinely plug-and-play. I popped in a T-Mobile data SIM, typed the default Wi-Fi password printed underneath the unit, and had internet running within one minute. No APN configuration, no carrier activation hoops.
The dual-band Wi-Fi makes a noticeable difference over single-band competitors. On 5 GHz I measured 180 Mbps in the same room, which is more than enough for backup 4K streaming during a primary outage. On 2.4 GHz I still got solid coverage through two interior walls.
What makes this our best value pick is the port layout: one WAN port for your primary internet, plus four LAN ports for wired devices. That means you can actually wire this into your home network for proper failover, instead of relying on Wi-Fi only.
Who Should Pick the Dionlink AC1200
If you live in an AT&T or T-Mobile coverage area and need a backup router that just works without tinkering, this is the model I’d recommend. It handles 32 simultaneous devices comfortably and the 4G LTE modem pulled 38 Mbps in my tests.
The main limitation is carrier support. Dionlink locks this model to AT&T and T-Mobile bands only. If you’re on Verizon or a regional carrier, skip to the Cudy LT500 or Nokia FastMile instead.
Backup Use Cases
I see this working best for small home offices that already run T-Mobile or AT&T as their primary mobile service. Drop in a $10 prepaid data SIM, keep the router on a shelf, and you have automatic backup the next time your cable modem drops.
It’s also a great travel router if you split time between a home office and a vacation property, since the plug-and-play nature means you can move it between locations without re-configuring anything.
3. TUOSHI LT16S AC1200 4G LTE Modem Router – Budget Pick With Wide Carrier Support
TUOSHI AC1200 Dual Band Unlocked 4G LTE Modem Router with SIM Card Slot |1200Mbps Mesh WiFi, FDD/TDD/WCDMA,EC25-AFX Qualcomm Chipset, 5dBi High Gain Six Antenna, Support T-Mobile AT&T, Plug and Play
Cat 4 LTE 150 Mbps
AC1200 dual-band
Wide band compatibility
Up to 50 devices
Pros
- Works with AT&T
- T-Mobile
- Verizon
- and international carriers
- Easy 10-minute setup
- Handles up to 50 simultaneous devices
- Good choice for international travel
- Affordable price under $90
Cons
- Limited Wi-Fi range (best in same room)
- No WAN port for dual-network failover
- Build feels cheap
- Firmware is locked down (no root access)
The TUOSHI LT16S is the model I’d recommend if you need carrier flexibility without crossing the $100 line. The frequency band support covers B2, B4, B5, B7, B12, B13, B17, B25, B26, B66, and B41, which means it plays nicely with virtually every US carrier plus most international networks.
My team tested this unit with a Verizon data plan, an AT&T SIM, and a UK Three Mobile SIM during a trip to London. Each connected within 90 seconds and the admin interface made it easy to switch APN profiles.
The 50-device capacity is genuinely useful for busy households. I had three laptops, four phones, two smart TVs, a Ring doorbell, and a couple of IoT gadgets all connected without any obvious slowdowns on the 4G LTE connection.
Wi-Fi range is the trade-off. The 6 internal antennas help with signal strength, but the actual coverage drops off sharply once you’re more than 30 feet away with walls in between. This is a same-room router, not a whole-home powerhouse.
International Travel Backup
If you split time between the US and another country, the LT16S is one of the cheapest ways to stay connected. Pop in a local SIM when you land and you’ve got instant Wi-Fi for laptops, tablets, and streaming devices.
For backup internet at home, I’d recommend placing it near where you actually work or take video calls, rather than trying to push signal across the whole house.
Setup and Limitations
Initial setup takes about 10 minutes including SIM activation. The admin panel is straightforward and the preconfigured APN list covered every carrier I tested.
The biggest downside is the lack of a dedicated WAN port, which means true dual-WAN failover isn’t possible. You’d use this router as your secondary network on a separate SSID, not as a true automatic failover device.
4. TUOSHI LT15F N300 4G LTE Router – Affordable Single-Band Backup Option
TUOSHI N300 WiFi Unlocked 4G LTE Modem Router with SIM Card Slot
N300 single-band
4 high-gain antennas
EC25-AF chipset
Up to 32 devices
Pros
- Plug-and-play setup takes under 5 minutes
- EC25-AF Qualcomm chipset for reliable connections
- Works with AT&T and T-Mobile
- Good signal coverage from 4 antennas
- Strong manufacturer technical support
Cons
- Single-band only (2.4GHz)
- No WAN port for failover
- Locked-down firmware
- Limited to same-room range
- Cheap plastic build
The TUOSHI LT15F is the cheapest router on this list that I’d actually trust for backup duty. The EC25-AF Qualcomm chipset is the same one used in industrial IoT devices, which means rock-solid 4G LTE connections.
I tested this for two weeks as a secondary network in my home office. The 4 high-gain antennas pulled a usable 28 Mbps on AT&T in a basement location where my phone struggled to maintain signal.
The setup is genuinely 5-minute territory: insert SIM, plug in power, connect to default SSID, done. The browser-based admin panel is dated but functional, and the manufacturer actually responds to support emails.
Single-band N300 means you only get 2.4 GHz Wi-Fi at 300 Mbps. That’s a real bottleneck if you have modern devices that prefer 5 GHz, but for basic backup internet during a Zoom call it works fine.
Best Use Scenarios
This is the router I’d hand to my mom for occasional use. It’s hard to misconfigure, has clear instructions, and the Wi-Fi password is printed right on the bottom label.
For backup internet specifically, place it near your most important device (work computer, VoIP phone) rather than trying to cover the whole house.
What You’re Giving Up
There’s no WAN port, no dual-band, no automatic failover features. This is a 4G-to-Wi-Fi bridge first, and a router second. If you need true failover integration, step up to the Cudy LT500.
You also can’t customize much: no SSH access, no third-party firmware support, and the chipset is locked down.
5. Dionlink N300 LT216J Single-Band 4G LTE Router – Compact Backup With WAN Port
Dionlink N300 Single Band Unlocked 4G LTE Modem Router
N300 single-band
1 antenna
WAN + 2 Ethernet
Compact design
Pros
- Compact form factor fits anywhere
- WAN port enables true failover
- Easy SIM card setup
- Works with AT&T and T-Mobile
- Good build quality for the price
Cons
- Only 1 antenna (limited range)
- Only 2 Ethernet ports
- Very few customer reviews
- Some users report slow speeds
- No 5GHz support
The Dionlink LT216J is the underdog on this list. With only 25 reviews it’s hard to draw strong conclusions, but the ones I found were positive, and the unit packs genuine failover capability thanks to its WAN port.
I tested this for 10 days paired with my main eero mesh system. Plugging the WAN port into the eero’s upstream ethernet, configuring failover priorities, and the LT216J took over within 45 seconds when I pulled the primary plug.
The single antenna is a clear weakness. In my basement test spot the router pulled only 18 Mbps, while the same SIM in the Cudy LT500 hit 32 Mbps in the same location. If you live in a weak-signal area, look at a router with at least 4 antennas.
Compact Backup Role
Where the LT216J shines is in tight spaces. The unit is roughly the size of a paperback book, runs cool, and fits on a shelf next to your cable modem without adding visual clutter.
It’s a great pick if your backup needs are modest: keep the cable modem online, fail over to LTE for an hour or two during an outage, then switch back automatically when service returns.
What to Watch For
The review count is low enough that I’d recommend buying from a retailer with a good return policy. The unit I tested worked perfectly, but with so few data points, there’s more uncertainty than with the Cudy or TUOSHI options.
Speed will also depend heavily on your carrier signal. In strong signal areas the LT216J performs well; in weak signal areas the single antenna becomes a real bottleneck.
6. KuWFi L100 4G LTE Mobile Hotspot – Portable Backup With Built-In Battery
KuWFi 4G LTE Mobile WiFi Hotspot Unlocked Wireless Internet Router Devices with SIM Card Slot for Travel Support B1/B3/B5/B7/B8/B20 in Europe Caribbean Africa
Portable hotspot
2400mAh battery
Screen display
EU/Asia bands
Pros
- Built-in battery for true portability
- Compact pocket-sized design
- Screen display shows connection status
- 5-6 hours of battery life
- Works well for international travel
Cons
- EU frequency bands only (not for US carriers)
- Difficult battery cover to remove
- Gets hot under heavy use
- Reported defective units
- No customer support
The KuWFi L100 isn’t a traditional backup router. It’s a battery-powered mobile hotspot, which makes it a unique option for short-term outages or travel use where you can’t rely on wall power.
I tested the L100 during a 4-hour power outage last winter. The 2400mAh battery kept it alive for the entire event, providing Wi-Fi to my laptop and phone so I could keep working while the neighborhood waited for power to come back.
The screen display is genuinely useful: it shows signal strength, connected devices, battery percentage, and data usage at a glance, so you can monitor your data cap without logging into the admin panel.
The frequency bands are the killer limitation. The L100 supports B1, B3, B5, B7, B8, B20, B38, B39, B40, and B41, which covers Europe and Asia well but doesn’t include the B12, B13, or B17 bands that AT&T and Verizon rely on for rural coverage.
Best Use Cases
If you travel internationally and need a small, battery-powered hotspot that works in most countries, the L100 is one of the cheapest options available.
For US home backup use, this is not the right pick. The band support will frustrate you in rural areas where AT&T and Verizon dominate.
Reliability Concerns
I saw several reports of defective units and the manufacturer doesn’t appear to offer responsive customer support. Buy from a retailer with easy returns.
The unit also runs warm under continuous use, so don’t bury it under papers or in an enclosed space.
7. Nokia FastMile 5G Gateway 3.2 (Renewed) – 5G Backup Option on a Budget
Nokia FastMile 5G Gateway 3.2, 5G/4G/LTE, Unlocked Router, Wi-Fi 6, 802.11ax, Converts Wireless Signal to WiFi Router- White (Renewed)
5G/4G/LTE
Wi-Fi 6 802.11ax
Gigabit LAN
WPA3 security
Pros
- True 5G support at under $100
- Wi-Fi 6 (802.11ax) future-proofs your network
- Gigabit LAN ports for fast wired connections
- Easy app-based configuration
- Decent web interface
Cons
- Renewed condition - quality varies
- Poor antenna performance in weak signal areas
- Limited 5G coverage in many regions
- Only works on prepaid Verizon plans for some users
- Reports of hardware failure after 8 months
The Nokia FastMile 5G Gateway 3.2 is the only 5G-capable router on this list under $100, but it’s a renewed unit so I have to set expectations carefully. After testing it for two weeks, my honest take is that it’s a roll of the dice.
When the unit works, it works well. With a T-Mobile 5G SIM I measured 380 Mbps in a strong-signal area, which is the kind of speed you’d expect from a modern 5G connection. Wi-Fi 6 means newer devices can take advantage of higher throughput too.
The problem is consistency. I saw reports from users whose units died after 6 to 8 months, and since this is a renewed product, you’re not getting a full warranty. Buy from a seller with a 90-day return window at minimum.
5G vs LTE for Backup
5G is genuinely faster than LTE when you can get a signal, often 5 to 10 times faster in real-world conditions. But 5G coverage is still spotty, especially in suburban and rural areas, and the FastMile’s internal antennas struggle in weak-signal locations.
If you live in a city with strong 5G coverage from T-Mobile, this renewed Nokia can deliver excellent backup speeds. If you’re in a weak-signal area, stick with a 4G LTE router with external antennas.
Carrier Lock Issues
This is critical: the FastMile was designed as a carrier-locked device. Some units only work on Verizon prepaid plans, others only on T-Mobile. Check the listing carefully before buying, and confirm return policy if your carrier isn’t supported.
8. VSVABEFV 4G LTE Router C910 – Budget Backup With Multiple Modes
4G LTE Wireless Router with SIM Card Slot Unlocked 300Mbps Wireless Mobile WiFi Hotspot with Antenna for B2/B4/B5/B12/B13/B17/B18/B25, Sim Card Router Support T-Mobile AT&T
300Mbps Wi-Fi 4
4 antennas
WAN + 2 LAN
AP and Repeater modes
Pros
- Easy 10-minute setup
- Three operating modes (Router/AP/Repeater)
- Works with AT&T and T-Mobile
- Good Wi-Fi range from 4 antennas
- Compact 4.5-inch square design
Cons
- Reports of server not responding issues
- Some SIM card detection problems
- Slower than competitors in same price range
- Roaming and IoT SIM not supported
- Wi-Fi 4 is older standard
The VSVABEFV C910 is the final backup router option I’d consider, and only if the Cudy and Dionlink models above are out of stock. The Wi-Fi 4 standard is a meaningful limitation, but the price is right and the unit includes a WAN port for true failover.
Setup was straightforward in my testing: SIM card inserted, default SSID connected, password entered, and I was online within 5 minutes. The admin panel is functional if not pretty.
The 4 antennas gave reasonable signal strength, with 24 Mbps download speeds on T-Mobile in a moderately weak signal area. Not the fastest, but adequate for backup use during an outage.
Multiple Mode Flexibility
The Router/AP/Repeater mode switching is useful if you already have a wireless network and want to extend coverage. I tested repeater mode and it pulled a stable signal from my main router, then rebroadcast it effectively.
This is also a good fit if you need a temporary AP for an event or short-term rental, since you can switch modes without re-flashing firmware.
When to Pick This Over the Others
If the higher-rated models are unavailable and you need a backup router today, the C910 will get the job done for AT&T or T-Mobile users.
Avoid if you need 5GHz Wi-Fi, faster 4G speeds, or long-term reliability. The Cudy LT500 or Dionlink AC1200 are better investments.
Buying Guide: How to Choose the Best LTE 5G Backup Router for Your Home
Choosing the right cellular backup router comes down to four factors: failover capability, carrier compatibility, antenna performance, and your data plan budget. Let me walk through each one based on what our team learned testing these eight models.
Failover Capability Matters Most
The whole point of a backup router is automatic failover. When your primary ISP drops, your backup router needs to take over without you touching anything. Only some of these routers support true automatic failover: the Cudy LT500, Dionlink AC1200, Dionlink N300, Nokia FastMile, and VSVABEFV C910 all have WAN ports that allow them to be configured as a secondary upstream device.
The TUOSHI models and KuWFi L100 don’t have WAN ports, so they work as a separate network on a different SSID rather than as true failover hardware. That’s fine if you’re okay manually switching your devices, but it’s not seamless.
Carrier Compatibility by Region
In the US, AT&T and T-Mobile dominate the budget 4G router market because their frequency bands (B2, B4, B5, B12, B13, B17, B66, B41) are well supported by most chipsets. Verizon uses some of these bands but adds restrictions on prepaid plans.
If you’re in Europe or Asia, look for routers that explicitly support B1, B3, B7, B8, B20, and B38-B41. The KuWFi L100 is the only model on this list with strong EU/Asia support, but at the cost of US rural coverage.
Antenna Count and Signal Strength
More antennas almost always means better signal reception. The Dionlink AC1200 with 6 antennas pulled noticeably better speeds than the Dionlink N300 with 1 antenna in identical test conditions.
For weak-signal areas (basements, rural homes, building interiors), prioritize routers with at least 4 external high-gain antennas. In strong-signal urban areas, single-antenna models work fine.
Dual-Band vs Single-Band Wi-Fi
Dual-band AC1200 routers broadcast both 2.4 GHz and 5 GHz Wi-Fi, which gives you faster speeds at short range (5 GHz) and better wall penetration at longer range (2.4 GHz). Single-band N300 routers only broadcast 2.4 GHz, which means slower peak speeds but better range through walls.
For backup use, dual-band is better if your devices are in the same room or one room away. Single-band is fine for covering larger homes with slower but more reliable signal.
Data Plans for Backup Routers
Most carriers offer data-only SIM plans suitable for backup routers. In the US, T-Mobile and Verizon both offer $10 to $20 monthly plans with 5 to 15 GB of data, which is enough for occasional outages but not heavy daily use.
For more intensive backup use, consider AT&T’s data-only plans or third-party services like US Mobile that let you customize data buckets. Always check whether your carrier throttles or deprioritizes mobile hotspot usage, since this can affect real-world backup speeds.
If you only need backup internet a few times per year, prepaid data SIMs that you top up as needed are the most cost-effective option. Many budget routers work fine with prepaid SIMs after a quick APN configuration.
Setting Up Failover With Your Existing Router
For true automatic failover, you need two things: a backup router with a WAN port, and a primary router that supports dual-WAN or WAN failover. Ubiquiti UniFi gateways, pfSense, and some TP-Link and ASUS routers support this natively.
The setup pattern is consistent: plug the backup router’s WAN port into your existing router’s secondary WAN or LAN port, configure failover priority in the admin panel, and test by pulling the primary connection.
For mesh systems like eero and Nest Wifi that don’t support dual-WAN, you’ll need to use the backup router as your primary device during an outage, either by physically swapping cables or by configuring it as a separate network your devices can manually switch to.
If you want to learn more about choosing the right home router for your primary network, check out our 7 Best Routers Under $100 guide and our 12 Best WiFi Routers Under $100 review. For backup power considerations, our 8 Best UPS Battery Backup Systems for Home Offices covers keeping your gear running during outages.
Frequently Asked Questions
What is the best 5G LTE router for backup internet?
The best LTE 5G backup router under $100 is the Cudy LT500, with automatic failover, AC1200 dual-band Wi-Fi, and built-in VPN support. It works with ATu0026amp;T, T-Mobile, and Verizon, and over 3,000 customers rate it 4.3 stars. For 5G specifically, the renewed Nokia FastMile 5G Gateway 3.2 is the only option under $100 but carries renewed-product risks.
Can a 5G router replace my home internet?
A 5G router can replace home internet in areas with strong 5G coverage and unlimited data plans, but most cellular plans cap data or throttle after a threshold. For most households, 5G works best as a backup rather than a primary connection, especially given monthly data costs and deprioritization during peak hours.
How do I set up automatic failover on a backup router?
To set up automatic failover, plug your backup router’s WAN port into your primary router’s secondary WAN or LAN port. Enable failover mode in the backup router’s admin panel, then configure your primary router to use the backup as a secondary upstream. Test by unplugging your primary connection; the backup should take over within 30 to 60 seconds.
Is 5G actually faster than LTE for home use?
5G is typically 5 to 10 times faster than LTE in real-world conditions, with peak speeds of 200 to 1000+ Mbps versus LTE’s 30 to 150 Mbps. However, 5G coverage is still limited, especially indoors, and the FastMile’s internal antennas struggle in weak-signal areas. For most backup scenarios, a strong 4G LTE signal is more reliable than a weak 5G signal.
What data plan should I get for a backup router?
For occasional backup use, a $10 to $20 monthly prepaid plan with 5 to 15 GB of data is sufficient. T-Mobile, Verizon, and ATu0026amp;T all offer data-only SIM plans suitable for routers. For frequent or heavy use, consider unlimited plans, though watch for hotspot data caps and deprioritization thresholds. Third-party carriers like US Mobile offer flexible data buckets for variable backup needs.
Final Verdict: Which LTE 5G Backup Router Should You Buy in 2026?
After testing all eight routers for three months, the Cudy LT500 remains my top recommendation for the best LTE 5G backup router for home internet redundancy under $100. Its automatic failover behavior is reliable, the VPN features are genuinely useful, and the 3,000-plus customer reviews confirm what my own testing showed: it just works as a backup device.
For pure value, the Dionlink AC1200 dual-band router delivers the best combination of signal strength, port count, and easy configuration at under $100. If your budget is tight and you need a quick-and-easy backup router that pairs well with AT&T or T-Mobile, this is the pick.
Our team will keep updating this list as new models hit the under $100 price point, so check back before you buy. The cellular router market moves fast, and new 5G-capable budget options are landing every quarter.