{"niche":"Which smartwatch with heart rate monitor has the best GPS accuracy?","description":"Which smartwatch with heart rate monitor has the best GPS accuracy?","products":[{"brand":"Apple","model":"Apple Watch Ultra 2 (GPS + Cellular, 49mm)","price_gbp":410.23,"origin_country":null,"specs":{"screen_size":"1.92 in","battery_life":"36 hours","compatibility":"iPhone Xs or later with iOS 18 or later","water_resistance":"100m"},"confidence_score":null,"sources":[{"label":"Best Buy","url":"https://www.bestbuy.com/product/apple-watch-ultra-2-gps-cellular-49mm-titanium-case-with-black-ocean-band-black-2024/JJGCQ3FLGQ","currency":"USD","source_country":"US","price":539.97,"price_gbp":410.23,"scraped_at":"2026-06-25T16:04:14.370785"}],"summary":"Apple Watch Ultra 2 is a rugged 49mm smartwatch with built-in cellular, an always-on Retina display, and advanced training features like Heart Rate Zones. It supports multiday battery life up to 36 hours and includes dual-frequency, multi-constellation GPS for outdoor workouts. It's best suited for people who want an iPhone-connected sports and adventure watch that can be used on the go without carrying their phone.","ideal_for":"It has L1+L5 precision dual-frequency GPS plus multi-constellation support, which improves GPS tracking for activities compared with GPS-only watches."}]}