In depth comparison and review of Pebble 2 + Heart Rate 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 | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Pebble OS | Zepp OS |
| Supported Host Device OS | Android 4.3 (Jelly Bean) or later, iOS 8.0 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 |
| Depth | 9.8 mm | - |
| Body Details | - | With band: 34 g |
| Body Material | Polycarbonate | Aluminium alloy frame |
| Protection | Waterproof | Water-resistant |
| Colours | White | Charcoal/flame | Charcoal/lime | White aqua | - |
| Clock Display | Yes | Yes |
| FEATURES | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Sensors | Ambient light sensor, heart rate, 3-axis accelerometer | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Time, calories burned, activity, sleep activity, heart rate, steps taken | 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 | Music remote handling, call alerts, app alerts | 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 |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Wireless Interface | Bluetooth 4.0 | Wi-Fi, Bluetooth 5.0 BLE |
|---|
| DISPLAY | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Type | E Ink - monochrome | AMOLED - colour |
|---|---|---|
| Resolution | - | 466 x 466 pixels |
| Screen Size | - | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Scratch-resistant glass | Fingerprint-resistant coating, tempered glass, anti-glare bezel |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Type | - | Touch sensitive screen, push buttons |
|---|
| CASE | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Case Shape | - | Circular |
|---|---|---|
| Case Back | - | Polycarbonate |
| Case Details | Black | Black/flame | Aluminium alloy |
| BAND | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | 22 mm |
| Fits Wrist with Circumference | - | 150-215 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin buckle |
| Band Material | Silicone | Fluoroelastomer |
| Band Colour | Black | White | Superspeed black | Vintage brown leather |
| STORAGE | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| User Memory | - | 2.3 GB |
|---|
| BATTERY | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Capacity | - | 475 mAh |
|---|---|---|
| Battery Life | 7 day(s) | - |
| Battery Life Details | - | 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) |
| MISCELLANEOUS | Pebble 2 + Heart Rate | Amazfit GTR 4 |
|---|
| Included Accessories | Magnetic charging cable | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Silent alarm | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | 0 °C |
| Warranty | - | 1-year warranty |
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