In depth comparison and review of Garmin D2 Delta and Amazfit GTS 4. 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 | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | iOS, Android | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 47 mm | 36.5 mm |
| Height | 47 mm | 42.7 mm |
| Depth | 15.8 mm | 9.9 mm |
| Weight | 76 g | 27 g |
| Body Material | Fibre-reinforced polymer | Stainless steel, aluminium alloy frame |
| Protection | Waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Sensors | Accelerometer, thermometre, gyro sensor, heart rate, barometric altimeter, 3-axis compass | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, stress level | Time, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, sleep stages, stress level, menstrual cycle, personal activity intelligence (PAI), recovery time, training load, sleep quality score, nap, sleep breathing quality |
| Modes | - | 154 sports modes |
| Goal Setting | Yes | Yes |
| Features | 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 | Strength training guidance, camera remote control, find phone function, answering a call, VO2 max, making a call, Find my Device, breathing training function, store & play music, sunrise/sunset times, auto pause, auto lap, realtime location tracking, music playback control, weather information, instant message reply, PeakBeats workout status algorithm, ExerSense algorithm, Dual-band navigation, linear motor, Virtual Pacer, track run mode, smart trajectory correction, route file import |
| Notifications | SMS, Email | SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS receiver | - |
| Payment Technology | Garmin Pay | - |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Wireless Interface | Bluetooth, Wi-Fi, ANT+ | Wi-Fi, Bluetooth 5.0 |
|---|
| DISPLAY | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 240 pixels | 390 x 450 pixels |
| Screen Size | 1.2" | 1.75" |
| Pixel Density | - | 341 ppi |
| Screen Protection | Domed sapphire crystal | Tempered glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Type | Touch buttons | Touch sensitive screen, push button |
|---|
| CASE | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Case Size | 47 mm | - |
|---|---|---|
| Case Shape | Round | Rectangular |
| Bezel | Titanium | - |
| Case Back | Metal | - |
| Case Details | Silver | Aluminium alloy |
| BAND | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | 20 mm |
| Fits Wrist with Circumference | - | 140-200 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Pin buckle |
| Band Material | Leather | Fluoroelastomer |
| Band Colour | Brown | Infinite black | Misty white | Rosebud pink |
| STORAGE | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Storage Capacity | 16 GB | - |
|---|---|---|
| User Memory | - | 2.3 GB |
| BATTERY | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Capacity | - | 300 mAh |
| Battery Life | 12 day(s) | - |
| Battery Life Details | Smartwatch mode - up to 12 days GPS mode - up to 18 hour(s) GPS with Music mode - up to 8 hour(s) UltraTrac mode - up to 45 hour(s) |
Typical usage - up to 8 days Battery Saver Watch Mode - up to 16 days Clock - up to 30 days Heavy usage - up to 4 days Accurate mode (with GPS) - up to 16 hours GPS mode - up to 28 hours Power saving mode (with GPS) - up to 33 hours |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin D2 Delta | Amazfit GTS 4 |
|---|
| Included Accessories | Charging/data cable, silicone wrist strap (black) | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Garmin Pay, Garmin Pilot | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | 0 °C |
| Warranty | - | 1-year warranty |
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