APPLE WATCH SE 3

The Apple Watch SE 3 (GPS) features built-in single-band GPS, GLONASS, Galileo, and QZSS for independent distance, pace, and route mapping during workouts. Key Technical Specifications • Positioning & Navigation: GPS, GLONASS, Galileo, and QZSS (single-band, non-dual-band) • Chipset: Apple S10 64-bit dual-core processor with 4-core Neural Engine • Storage Capacity: 64 GB • Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth 5.3, NFC • Sensors: Second-generation optical heart sensor, accelerometer, gyroscope, barometer, always-on altimeter, compass, and body temperature sensor • Water Resistance: 50 meters (swim-rated) • Battery Life: Up to 18 hours (with fast-charging support) Size and Display Options • 40mm Case: • Dimensions: 40 mm × 34 mm × 10.7 mm • Display: 324 × 394 pixels (759 sq mm display area, Always-On Retina display up to 1,000 nits) • Weight (GPS): 26.3 grams • Wrist Fit: 130–200 mm • 44mm Case: • Dimensions: 44 mm × 38 mm × 10.7 mm • Display: 368 × 448 pixels (977 sq mm display area, Always-On Retina display up to 1,000 nits) • Weight (GPS): 32.9 grams • Wrist Fit: 140–245 mm Tips • Signal Environment: Single-band GPS tracks reliably for most open-air runs, though dense urban canyons or heavy tree cover may reduce route precision compared to multi-band models. • Phone Tethering: The GPS model requires a paired iPhone (via Bluetooth or Wi-Fi) to handle cellular calls and text messages unless you upgrade to the GPS + Cellular version.