In depth comparison and review of Apple Watch Series 4 (GPS + Cellular) and Garmin D2 Delta S. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Operating System | WatchOS 5 | - |
| Supported Host Device OS | iOS | iOS, Android |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | - |
| Audio Output | Speaker | - |
| Width | 34 mm | 42 mm |
| Height | 40 mm | 42 mm |
| Depth | 10.7 mm | 15.4 mm |
| Weight | 39.8 g | 65 g |
| Body Material | Stainless steel | Fibre-reinforced polymer |
| Protection | Waterproof | Waterproof |
| Clock Display | Yes | Yes |
| FEATURES | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Sensors | Accelerometer, ambient light sensor, gyro sensor, barometric altimeter, optical heart sensor, electrical heart sensor | Accelerometer, thermometre, gyro sensor, heart rate, barometric altimeter, 3-axis compass |
|---|---|---|
| Tracking Data | Distance, time, calories burned, activity, heart rate, steps taken, UV index, Air Quality index | Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, stress level |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, ECG accurate heart rate, listening to music, Retina Display technology, call alerts, automatic exercise recognition, Fall detection, Emergency SOS | Music remote handling, HRmax, camera remote control, find phone function, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, Garmin Elevate, TrueUp |
| Notifications | Calendar, SMS, Email | SMS, Email |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | - |
| Navigation (GPS) | GPS/GLONASS/Galileo/QZSS receiver | GPS/GLONASS receiver |
| Payment Technology | Apple Pay | Garmin Pay |
| IoT Intelligent Assistant | Siri | - |
| CELLULAR | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Technology | WCDMA (UMTS) / GSM | - |
|---|---|---|
| Mobile Broadband Generation | 4G | - |
| SIM Card Type | Electronic SIM card (e-SIM) | - |
| Messaging Services | SMS | - |
| Supported Mobile Messaging Services | SMS | - |
| CONNECTIVITY | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Wireless Interface | IEEE 802.11b/g/n, Bluetooth 5.0 | Bluetooth, Wi-Fi, ANT+ |
|---|
| DISPLAY | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Type | LTPO OLED - colour | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 324 x 394 pixels | 240 x 240 pixels |
| Screen Size | 1.57" | 1.2" |
| Screen Protection | Sapphire glass | Domed sapphire crystal |
| INPUT DEVICE | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Type | Touch sensitive screen (Force Touch) | Touch buttons |
|---|
| CASE | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Case Size | 40 mm | 42 mm |
|---|---|---|
| Case Shape | Rectangular | Round |
| Bezel | - | Stainless steel |
| Case Back | Sapphire crystal and ceramic back | Metal |
| Case Details | Stainless steel | Space grey aluminium | Space black stainless steel | Silver aluminium | Gold aluminium | Gold stainless steel | Rose gold-tone |
| Crown Type | Digital with haptic feedback | - |
| BAND | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Band Type | Milanese loop | Band |
|---|---|---|
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 130-180 mm | - |
| Changeable | - | Yes |
| Clasp Type | Magnetic closure | Buckle |
| Band Material | Steel mesh | Leather |
| Band Colour | White | Black | Pink sand | Space black | Gold | Seashell | Stone | Beige |
| STORAGE | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Storage Capacity | 16 GB | 16 GB |
|---|
| CPU | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Manufacturer | Apple | - |
|---|---|---|
| CPU Type | S4 | - |
| Features | W3 Apple wireless chip | - |
| BATTERY | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Life | 18 hours | 7 day(s) |
| Battery Life Details | - | Smartwatch mode - up to 7 days GPS mode - up to 11 hour(s) GPS with Music mode - up to 4.5 hour(s) UltraTrac mode - up to 25 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Wireless Charging | Yes | - |
| MISCELLANEOUS | Apple Watch Series 4 (GPS + Cellular) | Garmin D2 Delta S |
|---|
| Included Accessories | Power adapter, magnetic charging cable | Charging/data cable, silicone wrist strap (white) |
|---|---|---|
| Preloaded Software | Apple Pay | Garmin Pay, Garmin Pilot |
| SAR Value | 0.27 W/kg (head), 0.26 W/kg (limb) | - |
| Max Depth of Water Resistance | 50 m | 100 m |
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