Not sure about Techinn.
I have ordered 1 myself using paypal.
Product description Amazfit GTS 2 Smartwatch
This device is unlocked from any phone company (factory unlocked).
About this item
3D CURVED DESIGN & HD AMOLED SCREEN: The Amazfit GTS 2 is a curved 1.65" hd amoled screen, covered in 3d glass, boasts a crystal clear 341ppi pixel density, the bezel less design naturally transitions to the aluminum alloy watch body for an enhanced visual aesthetic."
LONG 7 DAY BATTERY LIFE & GPS BUILT IN: The GTS 2 is equipped with a powerful 246mah battery that can last 7 days with typical use, and is always ready to escort you on your journeys and track your progress. Basic usage battery life 20 days. Heavy usage battery life 3.5 days
3GB MUSIC STORAGE: Control mobile music playback via bluetooth, and transfer your favorite songs to the watch through your mobile phone with a massive 3gb local music storage. put your wireless headphones in, your phone down, and follow the music.
90 SPORTS MODES & 5 ATM: Amazfit GTS 2 includes 90 built in sports modes and is waterproof to a depth of up to 50 meters. Intelligent recognition of 6 sports modes also eliminates the need to manually select the sports modes, so the watch is always ready for action. Bottom Shell Plastic
ALL ROUND HEALTH TRACKING: Equipped with the biotracker 2, the second generation ppg bio tracking optical sensor, the amazfit gtr 2 can provide 24 hour heart rate monitoring, blood oxygen saturation measurement, sleep quality monitoring, and stress level monitoring. also included is the pai health assessment system, which uses algorithms to convert all of the complex health and activity data into one single score, to help you understand your physical state at a glance.
whats the real battery life like?