5G CPE : characteristics, comparison and solutions in 2026
Contents
The 5G CPE is being talked about as "the real alternative to fibre" in fibre-less areas. But what exactly is it ? A box ? A router ? An access point ? And how does it compare to fibre ONUs, standard WiFi routers or pocket MiFi devices ?
This guide untangles the confusion : a precise definition, a rigorous comparison with other network equipment, the characteristics of a good 5G CPE in 2026, and concrete use cases (rural home, construction site, motorhome, temporary office). The goal : to know whether and when a 5G CPE is the right solution for you.
What is a 5G CPE ?
A 5G CPE (Customer Premises Equipment) is a customer-side device that :
- Receives the 5G signals emitted by an operator base station (relay antenna)
- Authenticates the subscription via an inserted SIM card
- Converts the 5G radio signal into WiFi and Ethernet signals
- Distributes the connection to several devices (PC, TV, smartphones, IoT)
It is conceptually a small reversed base station : an enhanced smartphone with large antennas, transmission power and LAN ports. See our general CPE guide for the broader concept.
5G CPE vs fibre ONU
Both are technically CPEs, but very different :
| Criterion | Fibre ONU | 5G CPE |
|---|---|---|
| Incoming signal | Optical fibre | 5G waves (3.5 GHz, 26 GHz) |
| Typical speed | 500 Mbps - 10 Gbps | 200-800 Mbps |
| Latency | 1-5 ms | 10-30 ms |
| Reliability | 99.9% (almost weather-independent) | 95-98% (depending on coverage) |
| Installation | Fibre connection required | Plug & play with SIM |
| Mobility | None (fixed) | Portable depending on model |
| Data limit | Unlimited | 100-500 GB fair-use often |
| Equipment price | 50-200 € | 200-800 € |
| Subscription | 20-50 €/month | 30-60 €/month |
| Deployment | Slow (trenches, splicing) | Immediate (if 5G coverage) |
If fibre is available at your address, choose fibre. If it is not available, the 5G CPE is the best-performing alternative in 2026 — far superior to ADSL, VDSL2 or 4G.
5G CPE vs standard WiFi router
A WiFi router has no Internet access on its own : it must be connected to a modem (box, ONT, CPE) via Ethernet. It then broadcasts WiFi and routes packets between LAN ↔ WAN.
A 5G CPE integrates both functions : 5G modem + WiFi router in a single unit. You can :
- Connect PCs directly via the LAN ports
- Or connect your devices over WiFi
For an optimal WiFi experience, complement a 5G CPE (often equipped with basic WiFi 5 or WiFi 6) with a modern WiFi 6 Mesh AX3000 router in bridge mode. You get the best of both worlds : 5G + high-performance WiFi 6.
5G CPE vs mobile WiFi (MiFi)
The pocket MiFi is a battery-powered mini 4G/5G router designed for mobile use :
- Portable (pocket-sized)
- 6-12h battery life
- Limited speed (100-400 Mbps typical)
- WiFi 5 or basic WiFi 6, 2-3 internal antennas
- Budget 80-250 €
The 5G CPE is designed for fixed or semi-fixed use :
- Mains-powered, more powerful
- Large external antennas for better gain
- Speed of 300-800 Mbps commonly
- Gigabit or 2.5 Gb LAN ports
- Sometimes external antenna connectors (TS9/SMA)
- Budget 200-800 €
Simple rule : for nomadic use (train, car, event), choose a MiFi. For a second home, construction site, rural business, choose a 5G CPE.
Characteristics of a good 5G CPE
- 5G SA + NSA mode : future-proof to take advantage of native 5G SA
- Multi-operator support : unlocked SIM card, compatible with French bands (n1, n3, n7, n28, n78)
- Carrier aggregation : combines several 5G channels for maximum speed
- MIMO 4x4 minimum : antenna diversity for better capacity
- Integrated WiFi 6 or 6E : modern broadcasting to devices
- Gigabit or 2.5 Gb Ethernet ports : at least 2 ports for a desktop PC + switch
- External antenna connectors : SMA or TS9 for a directional antenna
- Indoor or outdoor IP65/IP67 version : depending on location
- Administration interface : responsive web, mobile app
- Integrated VPN : OpenVPN, IPSec, WireGuard for secure remote work
Use cases and solutions
1. Rural home with no fibre eligibility
Typical scenario : a second home or main residence in a fibre-less area. 4G ADSL gives 10-30 Mbps ; a 5G CPE with a directional external antenna can reach 300-500 Mbps. Cost : 300-500 € for the CPE + 30-45 €/month for a 5G plan.
2. Construction site and temporary office
Short-term rental (3-12 months). Running a fibre is out of the question. A plug & play 5G CPE provides Internet to 10-30 people in an office in 15 min. Solutions : Huawei H155-5G, Zyxel NR7101, or industrial Teltonika CPE.
3. Motorhome and converted van
12/24V 5G CPE with a roof antenna. Lets you live, work remotely and stream from anywhere in France with 5G or 4G coverage. Complement it with an outdoor IP67 WiFi 6 AP to enjoy the network outside.
4. Fibre backup for SMEs
An SME with primary fibre can add a 5G CPE as a backup link. If the fibre goes down, traffic automatically switches over to 5G. Dual-WAN configuration on pfSense or a Teltonika router.
5. Isolated industrial IoT
Factories, solar farms, wind turbines, EV charging stations : an industrial 5G CPE relays IoT data without requiring fibre. Annualised cost lower than a dedicated line on an isolated site.
Complementary Elfcam equipment
- WiFi 6 Mesh AX3000 router — connects your 5G CPE over modern WiFi 6
- WiFi 6 AX3000 repeater — extends coverage
- Outdoor IP67 WiFi 6 AX3000 AP — garden, terrace, converted van
- Cat 6/7/8 Ethernet cables — connect the CPE and the WiFi 6 router
- PoE switches — power cameras and APs
FAQ — 5G CPE
15G CPE vs operator 5G Box, is it the same ?
- Operator 5G Box (Orange 5G Home, Bouygues Box 5G, SFR 5G Box) : CPE locked to the operator's plan, often on rental
- Unlocked 5G CPE : direct purchase, unlocked SIM card, multi-operator compatible
2What real speed can you expect on 5G ?
- 5G NSA in the city : 300-700 Mbps download
- 5G SA in the city : 500 Mbps - 2 Gbps
- Semi-rural 5G : 100-400 Mbps
- 5G with a directional external antenna : +50 to +200% vs internal antennas
3External 5G antenna, which one to choose ?
- Directional panel antenna 12-20 dBi (MIMO 4x4 cross-polarised) for a rural home
- Omnidirectional antenna for a motorhome (360° coverage)
- Yagi highly directional for hyper-targeted long distance
4Fair-use data on 5G plans ?
- Orange 5G Home : marked unlimited, 500 GB fair-use
- Bouygues 5G Box : 500 GB then throttling
- SFR 5G Box : marked unlimited, ~400 GB fair-use
- Free 5G Box : 250 GB (tighter)
5Indoor or outdoor 5G CPE ?
- Indoor : simple, plug-and-play, nicer-looking. Place it near a window on the relay-antenna side
- Outdoor IP65/IP67 : antennas pointed directly at the relay antenna, higher speed (+30-100%), PoE-powered. Ideal for rural areas or weak signal
6Can I keep my phone number with a 5G CPE ?
- Keep the phone line via a VoIP operator (OVH Telecom, Bouygues Entreprise)
- Migrate to a dedicated mobile plan on a smartphone
- Use an ATA (Analogue Telephone Adapter) behind the CPE for a landline phone over VoIP
7Security of a 5G CPE ?
- Immediately change the default admin password
- Enable WPA3 on WiFi
- Update the firmware regularly
- Enable the built-in firewall and disable WPS
- If VPN : OpenVPN or WireGuard to encrypt all traffic
8Elfcam accessories for a 5G CPE setup ?
In summary
The 5G CPE is the best alternative to fibre when fibre is not available. More powerful than a MiFi (for fixed use), more flexible than a fibre ONU, and combined with a good WiFi 6 router, it offers a remote work + 4K streaming + family experience comparable to fibre in the city.
For optimal use, complement the 5G CPE with a WiFi 6 Mesh AX3000 router in bridge mode, an outdoor IP67 AP for a garden or converted van, and Cat 6 Ethernet cables for your desktop PCs. The whole set-up costs 500-800 € + a monthly plan and works everywhere covered by 5G.
