Sleep Tech research
Amazfit GTR 4: Specifications, Sources, and Buying Context
Amazfit GTR 4 specifications, source notes, and buying context based on published product information.
Written by BenchPicked Editorial Team · Sources checked May 16, 2026
Decision answer
Bottom line
Consider Amazfit GTR 4 when its documented Category: sleep technology product; Model: GTR 4; Battery Life: up to 14 days match the intended use. Compare another option when a required capacity, compatibility, recurring cost or return condition is missing or does not fit.
- For
- people comparing consumer sleep tracking without treating a wellness device as medical equipment
- Decision
- decide whether Amazfit GTR 4 fits the intended job and purchase constraints
- Context
- balancing comfort, sensors, charging, subscription cost and data access
Decision matrix
Read each published value in the context of the decision it can actually support.
| Factor | Published information | How to use it |
|---|---|---|
| Category | sleep technology product | Use the exact published value to compare like-for-like products; an omitted value remains unknown. |
| Model | GTR 4 | Use the exact published value to compare like-for-like products; an omitted value remains unknown. |
| Battery Life | up to 14 days | This determines installation, charging and whether the product can finish the intended session. |
| Subscription Required | no for core sleep features | Include recurring charges and required accessories when comparing ownership cost. |
| Subscription Cost | not applicable | Include recurring charges and required accessories when comparing ownership cost. |
| Dimensions | 46 x 46 x 10.6 mm | Check this against the installation, storage or carrying constraint before ordering. |
| Weight | 34 g without strap | Check this against the installation, storage or carrying constraint before ordering. |
Claim and evidence record
source attributed
Category: sleep technology product
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Model: GTR 4
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Battery Life: up to 14 days
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Subscription Required: no for core sleep features
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Subscription Cost: not applicable
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Dimensions: 46 x 46 x 10.6 mm
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualsource attributed
Weight: 34 g without strap
This records what the cited source publishes; it is not a BenchPicked measurement.
Amazfit GTR 4 electronic manualWhen another option is the better fit
A non-wearable tracker
Choose this when wearing a ring or watch overnight disrupts sleep or charging routines.
A simpler wearable
Choose this when trend tracking matters more than advanced scoring or coaching.
No new device
Choose this when the purchase would not change a specific sleep habit or decision.
Published specs
| Field | Value | Source basis |
|---|---|---|
| Battery Life | up to 14 days | Source Attributed |
| Brand | Amazfit | Source Attributed |
| Category | sleep technology product | Source Attributed |
| Compatible Platforms | iOS, Android, Zepp app | Source Attributed |
| Connectivity | Bluetooth, Wi-Fi | Source Attributed |
| Data Export | Zepp app integrations | Source Attributed |
| Dimensions | 46 x 46 x 10.6 mm | Source Attributed |
| Display Type | AMOLED | Source Attributed |
| Form Factor | watch | Source Attributed |
| Model | GTR 4 | Source Attributed |
| Price Range | $ | Source Attributed |
| Primary Sensors | BioTracker PPG, accelerometer, gyroscope, SpO2 | Source Attributed |
| Sleep Stages | yes | Source Attributed |
| Spo2 Tracking | yes | Source Attributed |
| Subscription Cost | not applicable | Source Attributed |
| Subscription Required | no for core sleep features | Source Attributed |
| Water Resistance | 5 ATM | Source Attributed |
| Weight | 34 g without strap | Source Attributed |
Source notes
- Amazfit GTR 4 Electronic Manual · Manufacturer · Checked May 16, 2026
- FCC Equipment Authorization Database · Regulatory · Checked May 16, 2026
Questions
What sensors are listed for Amazfit GTR 4?
The selected sources list these product signals or controls for Amazfit GTR 4: BioTracker PPG, accelerometer, gyroscope, SpO2.
What battery or power setup does Amazfit GTR 4 use?
The selected sources list battery or power information for Amazfit GTR 4 as up to 14 days.
Does Amazfit GTR 4 require a subscription?
The selected sources list subscription status as no for core sleep features; subscription cost is listed as not applicable.
What platforms are compatible with Amazfit GTR 4?
The selected sources list compatible platforms as iOS, Android, Zepp app.
How BenchPicked separates published facts, analysis, and evidence limits