Health checks
Every link, every second. Box measures delay, jitter and lost packets on each connection and leans on the ones doing best.
Box has SIM cards built in, on more than one mobile network. It combines them, and your broadband, into a single Wi‑Fi connection that is faster than any of them alone and keeps going when one drops.
Built for every
kind of place
How it works
Combined vs. fastest link
2.1×
Faster than its fastest connection*
EdgeFusion
1 s
Between health checks on every link
Built-in SIMs
0
SIM cards to buy, cut or swap
Try it
Switch connections on and off and see what Box makes of them, next to what each one manages alone.
View
Box's connections
Speed
Download speed in Mbps: higher is better.
* Speeds are illustrative. Yours depend on the networks and plans where you are.
Inside
Everything Box needs to keep you connected comes in the box.
Every link, every second. Box measures delay, jitter and lost packets on each connection and leans on the ones doing best.
One name, every device. At home or across a shop floor, with wired ports for the things that prefer a cable.
Out of the box in minutes. Plug it in, let it find every network, and join the Wi‑Fi. There is nothing to configure unless you want to.
Live, from your phone. Which networks are up and how much each one is carrying, wherever you are. The console →
Always current. Box keeps its own software up to date in the background. There is nothing to download or install.
Who it's for
Everyone online at once, without the evening slowdown. Films, homework and video calls share a connection made of every network.
Card machines and booking systems keep working when one network is having a bad day.
Calls stay up when a network drops, because they never depended on just one.
Building sites, farms and new builds, online from day one without waiting for a line.
When a crowd fills one network, Box leans on the others. Set up in minutes, pack up the same day.
Records, lessons and payments that can't wait for a network to come back.
Security
Its own key, its own tunnels. Each connection carries your traffic through its own tunnel to a Simplifyd hub. Tunnels start with a Curve25519 key exchange, and their control messages are encrypted with ChaCha20‑Poly1305.
Networks change. Your address doesn't. The hub puts your traffic back on the internet from one address, so banks, card terminals and video calls see a single connection that stays put when a network drops.
No. Box arrives with its SIMs already inside, each on a different mobile network.
No. Box works on its SIMs alone. If you do have fibre, cable or DSL, plug it in and Box adds it to the mix for extra speed and another backup.
A mobile router uses one SIM on one network at a time, and switching between networks drops your connection. Box uses all of its connections at once, so their speeds add up, and losing one does not interrupt what you are doing.
Box keeps sending your traffic over the connections that are still up, straight away and without anything for you to do. When the network comes back, Box starts using it again.
Box opens a tunnel to our hub over each of its connections and shares your traffic between them, packet by packet, in both directions. The hub puts it back on the internet from one address, so websites and apps see a single steady connection.
One box, SIMs inside, and a faster connection that doesn't give up.