Prices are almost identical, both have GPS and 5 ATM. The North Edge lasts longer, the Haylou has more sensors.

Short answer

North Edge Cross Fit 3 - 580 mAh and up to 14 days. Haylou Solar Ultra - a bigger 1.6" screen, barometer, SpO2.

Key differences

SpecNorth Edge Cross Fit 3Haylou Solar Ultra
Display1.43", AMOLED (S-AMOLED), 466×4661.6", AMOLED (S-AMOLED), 480×480
ChipMTK2523D + 3335—
Battery lifeup to 14 daysup to 12 days
Battery580 mAh450 mAh
ConnectivityBluetoothBluetooth
NavigationGPSGPS
Sensorscompassheart rate, SpO2, barometer, compass
Protection5 ATM5 ATM
CompatibilityAndroid, iOSAndroid 9.0+, iOS 13.0+
Dimensions, weight—51.4×51.4×15.12 mm, 56.6 g
Pricecurrent pricescurrent prices

Specs come from the device pages on Smartphone.ua.

Display

1.43" 466×466 vs 1.6" 480×480.

Battery life

580 mAh and up to 14 days vs 450 mAh and up to 12 days.

Sensors

Only the Haylou's spec sheet lists a barometer and SpO2.

Verdict: who should buy which

  • Battery life - North Edge Cross Fit 3.
  • Display and sensors - Haylou Solar Ultra.

FAQ

Is there GPS?
Yes, on both.

Can you swim with them?
Yes, 5 ATM.

Which is cheaper?
The North Edge.

Read also