
Buyers generally admire the GTS 4’s crisp, colourful rectangular display and the wealth of sports and health modes it packs in for its price. Its dual‑band GPS and offline music support, along with a built‑in speaker and microphone, add to its appeal, and the battery holds up well for daily training. On the negative side, reviewers reported that heart‑rate readings can be erratic during high‑intensity workouts and felt the interface and app ecosystem still trail dedicated smartwatches. Some also felt that the case materials feel cheaper than they look and that it isn’t a huge step up from its predecessor. Nonetheless, they conclude it offers strong tracking and value if you can overlook the uneven accuracy and limited smart features.
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