Garmin Enduro 4 (51 mm) / Apple Watch Series 6 (40 mm, GPS)

Garmin Enduro 4 (51 mm): 010-04799-00 · titanium bezel / dark olive ComfortFit fabric band

Apple Watch Series 6 (40 mm, GPS): Apple Watch Series 6, 40 mm aluminium case, GPS (2020). The 44 mm and GPS + Cellular versions, stainless steel/titanium cases and the Nike and Hermès editions are separate.

SpecificationGarmin Enduro 4 (51 mm)Apple Watch Series 6 (40 mm, GPS)
Release year20262020
Announcement and salesAnnounced 6 October 2026; Garmin's press release states it is available now Garmin—
Model code010-04799-00; 51 mm with dark olive ComfortFit fabric band Garmin—
Display1.4-inch (35.56 mm) colour, sunlight-visible transflective MIP; 280 x 280 pixels; touchscreen GarminAlways-On Retina LTPO OLED; 324 × 394 pixels, 759 mm² display area; 1000 nits

The Always-On display keeps the time and complications visible with the wrist down.

Apple
LensPower Sapphire (solar-charging sapphire lens) Garmin—
Case and bezelFibre-reinforced polymer case; titanium bezel; 51 x 51 x 15.7 mm Garmin—
Weight66 g; case only 57 g Garmin—
BandComfortFit fabric band; QuickFit compatible (26 mm); ComfortFit Medium fits 145-220 mm wrists Garmin—
Storage64 GB for music, maps and data Garmin32 GB Apple
Memory50% more RAM than Enduro 3 (Garmin claim) Garmin—
PositioningGPS, GLONASS, Galileo, QZSS, BeiDou; multi-band GPS; SatIQ automatic satellite mode selection Garmin—
SensorsElevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light sensor; skin temperature Garmin—
ECGGarmin ECG app; available only in selected regions and for adults aged 22 and over Garmin—
FlashlightLED flashlight with white and red light Garmin—
Battery typeBuilt-in rechargeable lithium-ion battery Garmin—
Battery: smartwatchUp to 36 days in smartwatch mode; 90 days with solar. Low-power watch mode 92 days; unlimited with solar. Expedition mode 77 days Garmin—
Battery: activityNormal/Balanced 80 hours (144 with solar); Max Accuracy 60 (90); Extended 120 (320); Max Battery 210 hours (unlimited with solar); with music 22 hours (25) Garmin—
Solar charging assumptionsGarmin's figures assume 3 hours per day outdoors at 50,000 lux in smartwatch mode and continuous 50,000 lux in activity modes Garmin—
ChargingGarmin proprietary charging cable; USB-C computer port or an adapter rated at least 5 W Garmin—
Water resistance10 ATM; withstands pressure equivalent to 100 m depth Garmin50 metres (ISO 22810:2010)

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

Apple
ConnectivityBluetooth, ANT+, Wi-Fi; pairs with iPhone and Android Garmin—
Payments and musicGarmin Pay contactless payments; offline music from Spotify, Deezer and Amazon Music (subscription may be required) Garmin—
MapsPreloaded multicontinent TopoActive maps; on-watch routing, NextFork, perspective view Garmin—
Training and activities100+ activity profiles; grade-adjusted pace targets, stamina zones and curve, Garmin Epic multiday logging Garmin—
Power modesPower modes selectable during an activity: Max Accuracy, Balanced, Extended, Max Battery Garmin—
Operating temperature-20 to 45 °C operating and storage; charging 0 to 45 °C Garmin—
Radio2400-2483.5 MHz (< 19 dBm) and 13.56 MHz; M/N A04413 Garmin—
In the boxEnduro 4 with dark olive ComfortFit fabric band; charging/data cable; documentation Garmin—
Case and version—40 mm aluminium case, GPS; Silver, Space Gray, Gold, Blue, (PRODUCT)RED

Stainless steel and titanium cases were only sold in the GPS + Cellular version. The 44 mm model uses the same chip but has a different display and weight.

Apple
Chip—S6 SiP with 64-bit dual-core processor; W3 wireless chip; U1 Ultra Wideband chip

Ultra Wideband availability varies by region.

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

Apple states Blood Oxygen measurements are not for medical use and are only designed for general fitness and wellness. The ECG app is not intended for people under 22.

Apple
Other sensors and safety—Always-on altimeter, compass, accelerometer up to 32 g with fall detection, gyroscope, ambient light sensor; Emergency SOS

On the GPS model, Emergency SOS needs the iPhone nearby; otherwise the watch must be on a known Wi‑Fi network with Wi‑Fi Calling on. International emergency calling is only on the cellular model.

Apple
Wireless—Wi‑Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.0

LTE and UMTS are only on GPS + Cellular models.

Apple
Battery and charging—Built-in lithium-ion battery; up to 18 hours; magnetic charging cable (1 m)

The 18-hour figure comes from Apple’s August 2020 testing with pre-production watches paired to an iPhone; it varies with use.

Apple
Other—Speaker, microphone, Apple Pay, GymKit; ceramic and sapphire crystal back Apple
Compatibility—Requires an iPhone 6s or later with iOS 14 or later Apple
Size and weight—40 × 34 × 10.7 mm; 30.5 g (aluminium, without band) Apple