Harald Karcher · 27/10/2022
Field test · speeds at 30 locations near Munich
AVM FRITZ!Box 6850 5G delivers strong 5G speeds on the route and is the only Fritz!Box with 5G and full features, but it isn't cheap.
Likes- Fast mobile speeds at many test points
- Full Fritz!Box feature set, including 5G
- Works with a Telekom 5G SIM card
Dislikes- High starting price
- Other 5G routers are a better fit if you only need mobile internet
Pokipsie Network · 12/04/2022
Long-term test · almost a year of use
AVM FRITZ!Box 6850 5G is ideal for escaping provider routers, though speed depends on local 5G antennas.
Likes- Frees owners from restrictive provider routers
- Reliable over eleven months with regular updates
- Well-built hardware
- Mobile internet anywhere via the SIM slot
Dislikes- Speed and latency held back by older local 5G antennas
- Extra speed would need external antennas, which are still being considered
LTEForum · 09/04/2022
Antenna test · external antennas on modified router
AVM FRITZ!Box 6850 5G's modified version pays off mainly in weak-signal areas, and its antenna performed convincingly.
Likes- Four external antenna connections on the modified version
- Antenna gives better reception and bandwidth in tests
- Good build quality and weatherproof antenna design
- Wide frequency range covering the main European bands
Dislikes- Standard model's internal antennas give only mediocre reception
- Gains are modest, around ten percent in some tests
- Whether the modified version is worth it depends on the individual location
LTEForum · 11/02/2022
Hands-on review · setup, settings and real-world 5G use
AVM FRITZ!Box 6850 5G is a well-rounded package with easy setup and strong settings, though it has some weaknesses.
Likes- Clear web interface that is easy to configure
- Extensive configuration options for advanced users
- Antenna alignment assistant helps find the best signal position
- Low power consumption of about 4 to 8 watts
Dislikes- Wi-Fi 5 only, with no Wi-Fi 6 support
- Wi-Fi speed drops noticeably with distance from the router
- No built-in battery, so it only works when stationary
- Some users say the firmware still feels like beta software
Marcel Schindler · 15/07/2023
Problem report · 5G test on one mobile network
AVM FRITZ!Box 6850 5G showed no fault, but it cannot use 5G on this network's band, so it is not recommended for this network.
Likes- Good LTE reception at the rural test location
- Connects to LTE on the 800 MHz band
- Speed test result is acceptable
Dislikes- No 5G on the o2 700/800 MHz NSA band combination
- 5G SA on o2 only works with Multicard SIMs, not Connect data tariffs
Marcos Reviews · 11/05/2025
Hands-on review · rural 5G internet and mesh coverage
AVM FRITZ!Box 6850 5G offers robust, fast 5G internet for rural areas, though it is expensive and has a data cap.
Likes- Speeds around 230 Mbps, far above the old rural connection
- Connection stays stable during rain and strong wind
- Mesh set covers a 3000 m² plot with a single Wi-Fi network
- Cheaper SIM data plan than with the previous provider
Dislikes- Data is capped, and service stops once the allowance runs out
- Router and mesh set make the overall outlay high
El Rincón de China · 16/11/2023
Setup and features · interface, speed test and use cases
AVM FRITZ!Box 6850 5G offers easy setup and a practical travel internet option, though 5G speed depends on local coverage.
Likes- Very simple setup and configuration
- Guest access lets you create passwords quickly
- Spanish interface with clear options
- Useful as backup internet for holidays or remote IP cameras
Dislikes- The SIM with a PIN had to be removed during setup
- No real 5G in the creator's area, so speeds stayed at 4G levels
- Costlier than cheaper 4G alternatives if 5G is not needed
Jesus Terreros · 04/08/2022
Hands-on use · portable Wi-Fi for a TV box
AVM FRITZ!Box 6850 5G is easy to set up and fast enough for streaming; add the repeater if coverage falls short.
Likes- Simple, intuitive operating system with setup assistants
- Speed is enough for multimedia, even 4K, according to the video
- Repeater works well for extending Wi-Fi coverage
- Easy to use as portable Wi-Fi for a TV box
Dislikes- Coverage at the test spot is weaker than it could be
- A repeater may be needed for larger spaces or weaker signal
Informatic.com · 15/11/2021
Short review · features, 5G and speed tests
AVM FRITZ!Box 6850 5G feels almost like a fixed-line connection where 5G coverage is good, though speeds varied in tests.
Likes- Intuitive, visual FRITZ!OS interface
- Feature-rich, with a phone base, IP telephony, NAS and USB storage support
- Dual-band Wi-Fi and 5G compatibility
Dislikes- Speeds varied noticeably in upload and download tests
- Needs good 5G coverage from the operator to perform well
Saverio Cirillo · 15/07/2025
Hands-on review · 5G field test, setup and price check
AVM FRITZ!Box 6850 5G justifies its price with fast 5G speeds and lower latency than Starlink, though placement needs some care.
Likes- Fast 5G connection with lower latency than a satellite link
- Good energy efficiency
- Strong security features in FRITZ!OS
- Easy setup thanks to the quick guide in the box
Dislikes- No Wi-Fi 6 support
- Expensive for what it offers
- No One port, so it can't work as a standalone router
- Nano SIM needs adapters that are not included
unNERDeMEZZO · 28/11/2023
Hands-on review · speed tests, apps and repeater
AVM FRITZ!Box 6850 5G is a strong mobile internet router that can replace weak fixed lines, though 5G speed depends on the local cell tower.
Likes- Strong 4G and 5G performance where the cell tower is close
- Can replace weak fixed broadband lines entirely
- Adjustable antennas that can be aimed at the cell tower
- Easy app for signal checks and repeater setup
Dislikes- 5G speed was not very strong at the creator's location
- Speed depends heavily on the nearby base station
QualeScegliere · 13/07/2022
Short product overview · unboxing and features
AVM FRITZ!Box 6850 5G gets the most out of slow, interference-heavy mobile networks.
Likes- Gets the most out of a congested mobile network
- Good 4G and 5G coverage in the test city
- Includes two external antennas and a gigabit cable
Dislikes- Speed depends on the mobile operator's network quality
- Setup and app features covered only briefly
