Garmin fēnix 8 Pro 47 mm AMOLED / Apple Watch Series 8 (45 mm, GPS)

Garmin fēnix 8 Pro 47 mm AMOLED: 010-03198-11 · sapphire, titanium; Graphite/black silicone band

Apple Watch Series 8 (45 mm, GPS): Apple Watch Series 8, 45 mm aluminium case, GPS model. The 41 mm case, GPS + Cellular and stainless steel versions are separate models; weight and screen size differ.

SpecificationGarmin fēnix 8 Pro 47 mm AMOLEDApple Watch Series 8 (45 mm, GPS)
Release year20252022
Announcement and availabilityAnnounced September 3, 2025; on sale from September 8, 2025 Garmin—
Display1.4-inch AMOLED, 454 × 454; touchscreen GarminAlways-On Retina LTPO OLED; 396 × 484 pixels; 1143 sq mm display area; up to 1000 nits

The LTPO panel can lower its refresh rate a lot, so the screen stays on dimmed when the wrist is down.

Apple
LensSapphire Garmin—
Bezel and rearTitanium Garmin—
Dimensions47 × 47 × 16 mm Garmin—
Weight77 g with band Garmin—
Storage32 GB internal storage for maps and music Garmin32 GB Apple
Smartwatch battery lifeGesture display: up to 15 days; always-on: 8 days Garmin—
GPS battery lifeGPS only: up to 44 hours; 33 hours with always-on display Garmin—
Multi-band battery lifeAll systems + multi-band: up to 30 hours; 23 hours always-on Garmin—
LTE LiveTrack battery lifeAll systems + multi-band + LTE LiveTrack: up to 12 hours; 11 hours always-on

Manufacturer scenarios; enabled features change actual runtime.

Garmin		—
CommunicationSatellite messages/location; LTE Messenger calls and LiveTrack

Active inReach subscription and service coverage required.

Garmin		—
AudioBuilt-in microphone and speaker Garmin—
FlashlightWhite/red LED flashlight Garmin—
Water and diving10 ATM; recreational diving features to 40 m

A 10 ATM rating does not authorize diving to 100 m.

Garmin		—
TemperatureOperating: −20–45 °C; charging: 0–45 °C Garmin—
Chip—S8 SiP with 64-bit dual-core processor; W3 wireless chip; U1 (Ultra Wideband)

Ultra Wideband is used for close-range location with an iPhone; availability varies by region.

Apple
Health sensors—Blood oxygen sensor; electrical heart sensor (ECG app); third-generation optical heart sensor

The Blood Oxygen app is not for medical use. The ECG app is not intended for people under 22 and may not be available in every country.

Apple
Motion and safety—High-g accelerometer up to 256 g (Fall Detection and Crash Detection); high dynamic range gyroscope; Emergency SOS; international emergency calling

On the GPS model, Emergency SOS needs a nearby iPhone or Wi-Fi Calling; international emergency calling works only on cellular models.

Apple
Location—L1 GPS, GLONASS, Galileo, QZSS and BeiDou; compass; always-on altimeter

This is single-frequency (L1) GPS; drift between tall buildings can be higher than on dual-frequency models.

Apple
Connectivity—Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.3 Apple
Battery and charging—Up to 18 hours; built-in lithium-ion battery; USB-C magnetic fast charging cable

Apple’s 18-hour figure is based on 90 time checks, 90 notifications, 45 minutes of app use and a 60-minute workout with music; sleep tracking is not part of that scenario.

Apple
Durability—Water resistant to 50 metres under ISO 22810:2010; IP6X dust; ceramic and sapphire crystal back

Suitable for shallow-water activities in a pool or the sea; not for scuba diving, waterskiing or high-velocity water.

Apple
Size and weight—45 × 38 × 10.7 mm; aluminium GPS: 38.8 g Apple
Compatibility—Requires iPhone 8 or later with iOS 16 or later

It cannot be used with Android phones.

Apple
Colours—Aluminium: Midnight, Starlight, Silver, (PRODUCT)RED Apple