Mantis
The middle MantisX sensor: adds live fire to the X2's analysis so dry and range sessions land in the same data set.
The X3 sits between the dry-fire-only X2 and the do-everything X10 Elite, and the line it draws is clean: live fire. Mantis's comparison chart describes the X3 as the X2 plus live-fire functionality, with the same practice modes, the same coaching, and the same historical tracking. That means a range session and a living-room session land in the same data set, and you can look at whether the trigger control you built dry actually survived recoil.
Everything in the shared feature set carries over: muzzle trace, trigger-control analysis, a shot timer, per-firearm history, coaching tips, the drill and course library, daily challenges, and groups. The app is free for life with no subscription. The product page also lists airsoft and CO2 guns as supported hosts, which matters if your indoor training uses a gas blowback trainer.
What the X3 still does not do is the X10 Elite's upper tier: recoil analysis, consistency comparisons, holster-draw analysis, multi-target and moving-target work, shooting on the move, and the archery and shotgun apps. The X10 also ships the BR7 rifle rail and the Universal MagRail in the box, where an X3 on a rail-less pistol needs an adapter bought separately. If you shoot only handguns and rifles and want live-fire data without the competition-oriented modes, the X3 is the value pick in the sensor line.
Add the Mantis X3 Shooting Performance System to your build and see how it enhances your platform.