I have a Sunmi V1, and the only problem is that is printing the ticket after 5 second I press the comand. When when I have a people waiting in the line, 5 second is a lot!
I aredy instal the las version from play store!
I want to add that recently some of our users experienced dificulties with this device. It looks that the device comes with the Loyverse POS app in their app store, but it's an old version, and it doesn't work properly.
Looks like good device. It has 5.5-inch multitouch screen, 1.3GHz, Quad-core processors 4 GB Nand Flash high battery-powered Same style with XiaoMi power bank which allows to work up to 48 hours and make 5000 prints under full power. 58 mm printer, 74 mm/s printing speed. Quickly identify QR code within 0.7 seconds Designed for scanning mobile phone QR code Wifi, Bluetooth, Ibeacon, 3G, Mic, 1 sim card, USB, Good hardware for small business. All details you can find here: Few videos about how Loyverse works with Sunmi you can find here, here and here