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Samsung Gear S2 3G — case dimensions and design

Samsung · 2015

Gear S2 3G Size, Dimensions & Wrist Fit

Case Width

44mm

Thickness

13.4mm

Lug-to-Lug

51.8mm

Weight

51g

The Gear S2 3G looks in proportion on wrists of 16 cm (6.3 in) and up round, and fills the wrist at 17–19 cm (51.8mm lug to lug).

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Does the Gear S2 3G fit your wrist?

Wrist round (mm left each side)44mm
14 cm / 5.5 inOverhangs (3.3mm over)
15 cm / 5.9 inOverhangs (1.7mm over)
16 cm / 6.3 inOverhangs (0.1mm over)
17 cm / 6.7 inSweet spot (1.5mm)
18 cm / 7.1 inSweet spot (3.1mm)
19 cm / 7.5 inBalanced (4.7mm)
20 cm / 7.9 inBalanced (6.4mm)

How the fit model works · Size chart for every wrist

The Gear S2 3G in short

  • Rated for 2 days of use per charge.
  • Water resistant; no depth rating published.
  • 51g on the wrist.
  • 1.2 inches AMOLED display, always-on capable.
  • Takes 20mm bands.

Compare with another watch

Size, fit and battery side by side, against any smartwatch we list.

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Gear S2 3G battery life

Published runtime

  • Battery life2 days
Charges in 2 hours

Where it ranks among Samsung watches

  • Everyday use2 days#46 of 64
  • Capacity300 mAh#38 of 64
See all 64 Samsung watches ranked by battery life

2D Dimension Schematics

Top view
Side view
  • Samsung Gear S2 3G 44mm × 51.8mm · 13.4mm thick

3D preview

Samsung Gear S2 3G on a wrist

Open 3D try-on

What size band does the Gear S2 3G take?

Lug width

20mm

Gear S2 3G specifications

Battery life
2 days
Display
1.2 inches
Resolution
360 x 360 px
Water rating
Water resistant
Strap
20 mm
Storage
4GB
Charging
2 hours
Show all specificationsSamsung's published specification, for reference · checked September 2026

Design

width
44
height
51.8
weight
51 g
thickness
13.4
resolution
360 x 360 px
screen size
1.2 inches
Display type
OLED/AMOLED
Has a display
Yes
pixel density
302 ppi
width of band
20 mm
water resistance
Water resistant
Always-On Display
Yes
has a touch screen
Yes
Watch band is replaceable
Yes
has branded damage-resistant glass
Yes

Battery

charge time
2 hours
battery life
2 days
battery power
300 mAh
has wireless charging
Yes
has a removable battery
No
has a rechargeable battery
Yes

Sensors

has GPS
No
has a compass
Yes
Has a barometer
Yes
has an accelerometer
Yes
Has a heart rate monitor
Yes

Features

RAM
0.51GB
CPU speed
2 x 1 GHz
release date
2015-09-03
Has a stopwatch
Yes
Has call control
Yes
Has silent alarm
Yes
internal storage
4GB
Has notifications
Yes
Locates your phone
Yes
has voice commands
Yes
Has vibrating alerts
Yes
Can be used to answer calls
Yes

Connectivity

has NFC
Yes
SIM cards
1 eSIM
Wi-Fi version
Wi-Fi 4 (802.11n)
supports Wi-Fi
Yes
Bluetooth version
4.1
has a cellular module
Yes
Is compatible with iOS
Yes
Is compatible with Android
Yes

Miscellaneous

Has passcode
Yes
Has auto pause
Yes
has an external memory slot
No
Compatible with smart scales
Yes
has a battery level indicator
Yes
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
Has weight tracking
Yes
Predicts start date
Yes
Tracks water intake
Yes
Has inactivity alerts
Yes
Has period notifications
Yes
Provides activity reports
Yes
Counts how many calories you've burned
Yes

Activity tracking

Measures pace
Yes
Tracks distance
Yes
Tracks elevation
Yes
Tracks your sleep
Yes
Tracks steps taken
Yes
Has a route tracker
Yes
Has exercise tagging
Yes
Tracks calorie intake
Yes
Provides sleep reports
Yes
Detects activities automatically
Yes