- Water resistance
- Display type
Specs that matter
Display
- Panel
- LTPO AMOLED
- Size
- 1.78" (45 mm)
- Resolution
- 448x368
- Brightness
- 1000 nits
Performance
- Processor
- S4 with 64-bit dual-core processor
- Storage
- 16GB
Audio
- Type
- Earbuds
- Wear
- In-ear / earbuds
- Bluetooth
- Bluetooth 5.0
Body
- Weight
- 1.7 oz (48 g)
Product highlights
Verified attributes, grouped for quick scanning.
19 attributes · See all specifications
Price & availability
Set price alertWhere to buy
Prices from trusted US retailers, updated daily.
We may earn a commission from qualifying purchases. Prices and availability are stored at the time of last verification and may change.
2 price points tracked.
Check the store for today’s price.
Available in 16GB.
Should you buy it?
The Series 4 introduced 40mm and 44mm cases with a display more than 30% larger, an electrical heart sensor for ECG, fall detection, haptic feedback in the Digital Crown and a 50% louder speaker. The 64-bit S4 chip runs up to twice as fast as its predecessor. Battery is rated at 18 hours, there's no always-on display, and there was no built-in sleep tracking at launch.
Best for
Health-focused buyers who want ECG and fall detection
Not for
Anyone who wants an always-on screen or long battery life
Main strengthDisplay more than 30% larger
Main weakness18-hour rated battery
Reasons to buy
Display more than 30% larger
ECG and fall detection
S4 chip up to twice as fast
Haptic Digital Crown and louder speaker
Reasons to avoid
18-hour rated battery
No always-on display
No built-in sleep tracking at launch
Measured view—/10What the pros say.
