AMAZFIT GTS 4

Slim, square smartwatch with a large AMOLED screen, dual‑band GPS, and full health tracking—all in a lightweight 43 mm case.

• Display & Design:
1.75″ HD AMOLED (390 × 450 px, ~341 ppi), Always‑On capable; aluminum alloy frame with stainless‑steel navigation crown; size ≈ 42.4 × 36 × 9.9 mm; weight ~27 g 

• Health & Sensors:
BioTracker™ 4.0 (2‑LED) sensor for 24/7 heart‑rate, SpO₂, stress, breathing rate; one‑tap measurement of four key metrics; enhanced heart‑rate accuracy via refined algorithms 

• Fitness & GPS:
150+ sports modes with strength‑training auto‑recognition; industry‑first dual‑band circular‑polarized GPS (L1+L5) and six‑system support; route import & real‑time navigation; smart trajectory corrections included 

• Smart Features:
Zepp OS 2.0 (upgradable), built‑in Amazon Alexa, Bluetooth calling, onboard music storage/playback, live sports data via watch speaker/headphones, Wi‑Fi & NFC 

• Battery:
Built‑in 300 mAh battery: up to 8 days typical use, 12 days light mode, with magnetic charging .

• Durability & Connectivity:
5 ATM water resistance; Bluetooth 5.1, Wi‑Fi, compatible with Android 7+/iOS 10+; speaker + mic for calls and assistant