The bigger fenix 8 is currently cheaper and lasts longer. The 43 mm only makes sense for a slim wrist.

Short answer

fenix 8 AMOLED 47 mm - 1.4" 454×454, up to 16 days and a lower price. fenix 8 AMOLED 43 mm - the most compact fenix.

Key differences

SpecGarmin fenix 8 43mm AMOLEDGarmin fenix 8 47mm AMOLED
Display1.3", AMOLED, 416×4161.4", AMOLED, 454×454
Memory32 GB32 GB
Battery lifeup to 10 daysup to 16 days
ConnectivityBluetooth, ANT+, Wi-FiBluetooth, ANT+, Wi-Fi
NavigationGPS, GLONASS, Galileo, QZSS, BeiDouGPS, GLONASS, Galileo, QZSS, BeiDou
NFCyesyes
Sensorsheart rate, barometer, compass, gyroscope, temperatureheart rate, barometer, compass, gyroscope, temperature
Protection10 ATM10 ATM
CompatibilityiPhone, AndroidiPhone, Android
Dimensions, weight43×43×13.8 mm47×47×13.8 mm
Pricecurrent pricescurrent prices

Specs come from the device pages on Smartphone.ua.

What's the same

32 GB, Wi-Fi, GPS with BeiDou and QZSS, NFC, barometer, 10 ATM, 13.8 mm.

Display

1.3" 416×416 vs 1.4" 454×454.

Battery life

Up to 10 vs up to 16 days.

Verdict: who should buy which

  • More for less - fenix 8 AMOLED 47 mm.
  • Slim wrist - fenix 8 AMOLED 43 mm.

FAQ

Is the thickness the same?
Yes, 13.8 mm.

How much storage?
32 GB.

Which is cheaper?
The 47 mm.

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