The Xiaomi 15T series comes with a hidden gem that many people might miss: Astral Communication.
At its core, this is Xiaomi’s take on a walkie-talkie. Two Xiaomi 15T devices can talk to each other directly without using mobile networks — so even if you’re offline, you can still make calls.
How it works
- Both phones need a SIM card with data inserted.
- You’ll need to be logged into a Xiaomi account.
- In settings, switch on Offline Communication.
Once that’s done, your phone can connect directly to another 15T, letting you place calls either with your contacts or with nearby users. It feels like pairing Bluetooth headphones — and that’s exactly the tech Xiaomi is using.
Range and reliability
Xiaomi says the 15T Pro can reach up to 1.9 km, even with signal obstructions like buildings in the way.
Where it could be useful
Astral Communication may not replace your mobile plan, but it shines in specific scenarios:
- Hiking or camping: Stay in touch with friends in remote areas with little or no network coverage.
- Music festivals or crowded events: Skip congested mobile networks and talk directly.
- Emergency situations: When networks are down, having an offline way to connect could be critical.
- Traveling abroad: Avoid roaming fees by using direct device-to-device communication with your group.
For some, this could be a game-changing backup tool. For others, it might just be a neat extra tucked into the 15T series.
So, what do you think — is Astral Communication a feature you’d want to see on future Xiaomi phones, or is it more of a one-off showcase for the 15T lineup?
