In depth comparison and review of Samsung Gear S2 and Amazfit GTR 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 | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Tizen OS | Zepp OS |
| Supported Host Device OS | Android 4.4 (KitKat) or later | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | - | Speaker |
| Width | 39.9 mm | - |
| Height | 43.6 mm | - |
| Depth | 11.4 mm | - |
| Weight | 42 g | - |
| Body Details | - | With band: 34 g |
| Body Material | Stainless steel | Aluminium alloy frame |
| Protection | Dustproof, waterproof | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, heart rate | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, activity, heart rate, steps taken, water vs. caffeine intake | 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 |
| Features | Call handling, find phone function, voice control | 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, PeakBeats workout status algorithm, ExerSense algorithm, Dual-band navigation, linear motor, Virtual Pacer, track run mode, smart trajectory correction, route file import |
| Notifications | SMS | 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 |
| Digital Player | MP3, AAC, M4A, OGG, AAC +, eAAC+ | - |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CELLULAR | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Messaging Services | LINE, SMS | - |
|---|---|---|
| Supported Mobile Messaging Services | SMS | - |
| CONNECTIVITY | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 4.1 | Wi-Fi, Bluetooth 5.0 BLE |
|---|---|---|
| Bluetooth Profiles | Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - |
| DISPLAY | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Type | Super AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 360 x 360 pixels | 466 x 466 pixels |
| Screen Size | 1.2" | 1.43" |
| Aspect Ratio | Full circle | - |
| Pixel Density | 302 ppi | 326 ppi |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Fingerprint-resistant coating, tempered glass, anti-glare bezel |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push buttons |
|---|
| CASE | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Case Size | 40 mm | - |
|---|---|---|
| Case Shape | - | Circular |
| Case Back | - | Polycarbonate |
| Case Details | Black | Rose gold | Blue black | Aluminium alloy |
| BAND | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 20 mm | 22 mm |
| Fits Wrist with Circumference | - | 150-215 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin buckle |
| Band Material | Leather | Fluoroelastomer |
| Band Colour | Black | Ivory | Superspeed black | Vintage brown leather |
| STORAGE | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Storage Capacity | 4 GB | - |
|---|---|---|
| User Memory | 1.9 GB | 2.3 GB |
| RAM | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| RAM Size | 512 MB | - |
|---|
| CPU | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Manufacturer | Samsung | - |
|---|---|---|
| CPU Type | Exynos 3250 | - |
| Clock Speed | 1 GHz | - |
| BATTERY | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Capacity | 250 mAh | 475 mAh |
| Battery Life | 3 day(s) | - |
| Battery Life Details | Low usage - up to 4 days | Typical usage - up to 14 days Battery Saver Watch Mode - up to 24 days Clock - up to 50 days Heavy usage - up to 7 days Accurate mode (with GPS) - up to 25 hours GPS mode - up to 44 hours Power saving mode (with GPS) - up to 52 hours |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| Wireless Charging | Yes | - |
| MISCELLANEOUS | Samsung Gear S2 | Amazfit GTR 4 |
|---|
| Included Accessories | Power adapter, wireless charging dock | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Contacts, E-mail, Messages, Music Player, Twitter, Samsung Apps, News, Gallery, Weather, S Voice, S Health, Notification Center, Nike+ Running | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Compliant Standards | IP68 | - |
| Max Depth of Water Resistance | - | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | 0 °C |
| Manufacturer Model Number | SM-R732 | - |
| Warranty | - | 1-year warranty |
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