Garmin Lily 2 vs Polar Street X

Garmin Lily 2

Garmin Lily 2

vsPolar Street X

Polar Street X

Garmin Lily 2Polar Street X
DisplayTouchscreen display hidden behind a patterned lens1.28-inch AMOLED touchscreen, 416 x 416, always-on option, Gorilla Glass 3
BodyMetal watch case; swappable Italian leather, nylon or silicone bands45 x 45 x 13.8 mm; 48 g with wristband, 28 g without; bio-based plastic case; 22 mm quick-release strap
BatteryUp to 5 days in smartwatch modeUp to 10 days in smartwatch mode; up to 43 hours with GPS in performance training mode (170 hours in eco mode); 385 mAh, replaceable
GPSConnected GPS (uses a compatible smartphone's GPS); no built-in GPS—
HealthBody Battery, sleep score, heart rate, stress, Pulse Ox, respiration, women's health tracking, meditation and breathwork—
Smart featuresSmart notifications, morning report, incident detection via Garmin Connect (no Garmin Pay on this model)—
ConnectivityCompatible with iPhone and Android via Garmin Connect appBluetooth LE; proprietary USB-C charging cable
Positioning—GPS, Galileo, BeiDou, QZSS with assisted GPS; barometer, compass; route guidance and back to start
Sensors—Precision Prime optical heart rate, nightly skin temperature, accelerometer, gyroscope, barometer, magnetometer; no ECG or SpO2
Durability—WR50 water resistance; tested to MIL-STD-810H; -20 to 50 °C operation
Sports—170+ sports and activities, Training Load Pro, Nightly Recharge, SleepWise, Sleep Plus Stages
Performance—275 MHz CPU, 5 MB memory, 32 MB storage
Extras—Integrated LED flashlight with white and red light; Polar Flow app and web service included
Colors—Night Black, Snow White, Forest Green