Polar Street X vs Garmin Forerunner 70

Polar Street X

Polar Street X

vsGarmin Forerunner 70

Garmin Forerunner 70

Polar Street XGarmin Forerunner 70
Display1.28-inch AMOLED touchscreen, 416 x 416, always-on option, Gorilla Glass 31.2-inch (30.4 mm) AMOLED touchscreen, 390x390, optional always-on mode, five-button design, chemically strengthened glass
Body45 x 45 x 13.8 mm; 48 g with wristband, 28 g without; bio-based plastic case; 22 mm quick-release strapFiber-reinforced polymer bezel, silicone strap; 42.6 x 42.6 x 11.9 mm; 40 g; 20 mm quick-release bands; fits wrists 126-203 mm
BatteryUp to 10 days in smartwatch mode; up to 43 hours with GPS in performance training mode (170 hours in eco mode); 385 mAh, replaceableUp to 13 days in smartwatch mode (up to 5 days with always-on display), up to 28 days in battery saver mode, up to 23 hours in GPS-only mode, up to 16 hours in all-systems GNSS mode
PositioningGPS, Galileo, BeiDou, QZSS with assisted GPS; barometer, compass; route guidance and back to startGPS, GLONASS and Galileo
SensorsPrecision Prime optical heart rate, nightly skin temperature, accelerometer, gyroscope, barometer, magnetometer; no ECG or SpO2Garmin Elevate wrist heart rate monitor, Pulse Ox blood oxygen (not available in all countries)
ConnectivityBluetooth LE; proprietary USB-C charging cableBluetooth, ANT+; smart notifications and LiveTrack with a paired smartphone
DurabilityWR50 water resistance; tested to MIL-STD-810H; -20 to 50 °C operation5 ATM water resistance
Sports170+ sports and activities, Training Load Pro, Nightly Recharge, SleepWise, Sleep Plus Stages80+ built-in sports apps including running, swimming, cycling and strength training
Performance275 MHz CPU, 5 MB memory, 32 MB storage—
ExtrasIntegrated LED flashlight with white and red light; Polar Flow app and web service included—
ColorsNight Black, Snow White, Forest GreenCitron, soft pink, tidal blue, cool lavender, black, whitestone
Memory—512 MB
Training—Quick workouts, Garmin Coach adaptive plans including run/walk, daily suggested workouts, training readiness, training status, wrist-based running power, running dynamics
Health—Advanced sleep tracking, sleep coach, breathing variations, HRV status, lifestyle logging, Health Status
Compatibility—Garmin Connect app for iPhone and Android; Connect IQ watch faces and data fields