Samsung · 2021
Galaxy Watch 4 Classic Wi-Fi 46mm Size, Dimensions & Wrist Fit
The Galaxy Watch 4 Classic Wi-Fi 46mm looks in proportion on wrists of 16.5 cm (6.5 in) and up round, and fills the wrist at 17–19 cm (lug-to-lug estimated at ≈52.5mm; Samsung does not publish it).
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Does the Galaxy Watch 4 Classic Wi-Fi 46mm fit your wrist?
The 42mm suits wrists of about 14.5–21 cm round; the 46mm, 16.5 cm and up. Both work from 16.5 to 21 cm, where it is a choice between more skin either side (the 42mm) and a case that fills the wrist (the 46mm). Under 16.5 cm only the 42mm's lugs stay on the wrist; over 21 cm the 42mm starts to look small.
| Wrist round (mm left each side) | 42mm≈47.5mm lug to lug, est. | 46mm≈52.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (1.2mm over) | Overhangs (3.7mm over) |
| 15 cm / 5.9 in | Bold (0.4mm) | Overhangs (2.1mm over) |
| 16 cm / 6.3 in | Sweet spot (2.1mm) | Overhangs (0.4mm over) |
| 17 cm / 6.7 in | Sweet spot (3.7mm) | Bold (1.2mm) |
| 18 cm / 7.1 in | Balanced (5.3mm) | Sweet spot (2.8mm) |
| 19 cm / 7.5 in | Balanced (6.9mm) | Sweet spot (4.4mm) |
| 20 cm / 7.9 in | Balanced (8.5mm) | Balanced (6mm) |
Which Galaxy Watch 4 Classic size fits you?
42mm
41.5mm · 11.2mm thick · 46.5g
View this size46mmViewing
45.5mm · 11mm thick · 52g
The Galaxy Watch 4 Classic Wi-Fi 46mm in short
- The 42mm version is 4mm narrower and 5.5g lighter.
- Between 10 hours and 2 days per charge depending on the power mode — smartwatch at best, gps at worst.
- Water rated to 50 m.
- 11mm thick. Middle of the pack for thickness at this width.
- 1.4 inches AMOLED display, always-on capable.
Compare the Galaxy Watch 4 Classic Wi-Fi 46mm head to head
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Galaxy Watch 4 Classic Wi-Fi 46mm battery life
Runtime by power mode
- Smartwatch2 days
- GPS10 hours
Charges in 2 hours
Where it ranks among Samsung watches
- Everyday use2 days#28 of 64
- GPS tracking10 hours#5 of 6
- Capacity361 mAh#24 of 64
2D Dimension Schematics
- Samsung Galaxy Watch 4 Classic Wi-Fi 46mm 45.5mm × ≈52.5mm (est.) · 11mm thick
3D preview
Samsung Galaxy Watch 4 Classic Wi-Fi 46mm on a wrist
What size band does the Galaxy Watch 4 Classic Wi-Fi 46mm take?
Lug width
20mm
Alternatives to the Galaxy Watch 4 Classic Wi-Fi 46mm
Galaxy Watch 4 Classic Wi-Fi 46mm specifications
- Battery life
- 2 days
- Display
- 1.4 inches
- Resolution
- 450 x 450 px
- Water rating
- 5 ATM
- Glass
- Gorilla Glass DX+
- Strap
- 20 mm
- Storage
- 16GB
- Charging
- 2 hours
Show all specificationsSamsung's published specification, for reference · checked September 2026
Design
- width
- 45.5
- height
- 45.5
- volume
- 22.77 cm³
- weight
- 52 g
- thickness
- 11
- ATM rating
- 5 ATM
- resolution
- 450 x 450 px
- screen size
- 1.4 inches
- Display type
- OLED/AMOLED
- Has a display
- Yes
- pixel density
- 455 ppi
- width of band
- 20 mm
- water resistance
- Waterproof
- Always-On Display
- Yes
- has a touch screen
- Yes
- Gorilla Glass version
- Gorilla Glass DX+
- waterproof depth rating
- 50 m
- Watch band is replaceable
- Yes
- Has sapphire glass display
- No
- Ingress Protection (IP) rating
- IP68
- has branded damage-resistant glass
- Yes
Battery
- charge time
- 2 hours
- battery life
- 2 days
- battery power
- 361 mAh
- has wireless charging
- Yes
- has a removable battery
- No
- battery life with GPS on
- 10 hours
- Has a solar power battery
- No
- has a rechargeable battery
- Yes
Sensors
- has GPS
- Yes
- has a compass
- Yes
- Has a barometer
- Yes
- has a gyroscope
- Yes
- Has a cadence sensor
- No
- has an accelerometer
- Yes
- Monitors perspiration
- No
- Has a heart rate monitor
- Yes
- Has a temperature sensor
- No
- Monitors blood oxygenation levels
- Yes
Features
- RAM
- 1.5GB
- CPU speed
- 2 x 1.18 GHz
- release date
- 2021-08-11
- Has a stopwatch
- Yes
- Has smart alarm
- No
- Has call control
- Yes
- Has silent alarm
- Yes
- has HRV tracking
- No
- internal storage
- 16GB
- measures VO2 max
- Yes
- Has notifications
- Yes
- Has ECG technology
- Yes
- Locates your phone
- Yes
- has a front camera
- No
- has fall detection
- Yes
- has voice commands
- Yes
- Acquires GPS faster
- No
- Has vibrating alerts
- Yes
- number of microphones
- 1
- shows readiness level
- No
- Can be used to answer calls
- Yes
- measures resting heart rate
- Yes
- has irregular heart rate warnings
- Yes
- has fast/slow heart rate notifications
- Yes
- Has a built-in camera remote control function
- Yes
Connectivity
- has NFC
- Yes
- Wi-Fi version
- Wi-Fi 4 (802.11n)
- supports ANT+
- No
- supports Wi-Fi
- Yes
- supports Galileo
- Yes
- Bluetooth version
- 5
- has a cellular module
- No
- Is compatible with iOS
- No
- Is compatible with Android
- Yes
Miscellaneous
- has aptX
- No
- Has passcode
- Yes
- Has auto pause
- Yes
- Is compatible with Windows
- No
- Is compatible with Mac OS X
- No
- has an external memory slot
- No
- Compatible with smart scales
- Yes
- has a battery level indicator
- Yes
- has a socket for a 3.5 mm audio jack
- No
- Compatible with external heart rate monitors
- Yes
App & Software
- Ad-free
- Yes
- Free app
- Yes
- Tracks BMI
- Yes
- Has coaching
- Yes
- Supports routes
- Yes
- Has achievements
- Yes
- Has goal setting
- Yes
- Has exercise diary
- Yes
- Can be personalised
- Yes
- Has weight tracking
- Yes
- Predicts start date
- Yes
- Tracks water intake
- Yes
- Has inactivity alerts
- Yes
- Has period notifications
- Yes
- Has temperature tracking
- No
- Provides activity reports
- Yes
- Counts how many calories you've burned
- Yes
Activity tracking
- Measures pace
- Yes
- Tracks distance
- Yes
- Tracks elevation
- Yes
- Designed for golf
- No
- Tracks your sleep
- Yes
- Tracks steps taken
- Yes
- Designed for diving
- No
- Has a route tracker
- Yes
- Has exercise tagging
- Yes
- Has multi-sport mode
- Yes
- Tracks calorie intake
- Yes
- Provides sleep reports
- Yes
- Detects activities automatically
- Yes
- Has a stroke counter for swimming
- Yes
