Samsung · 2015
Gear S2 - 3GSize, Dimensions & Wrist Fit
Case Width
44mm
Thickness
13.4mm
Lug-to-Lug
51.8mm
Weight
51g
The Samsung Gear S2 - 3G sits best on flat wrist widths of about 55–74mm (≈ 14.7–19.8cm wrist circumference). Adjust the slider below to check your wrist.
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The Gear S2 - 3G in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 2 days of use per charge.
- Water rated to Water resistant.
- 13.4mm thick. Thinner than 77% of 44mm watches, so it slides under a cuff more easily than most of its size.
- 1.2 inches OLED/AMOLED display, always-on capable.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the Gear S2 - 3G fit your wrist?
Drag the slider to your wrist width and see the Gear S2 - 3G overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Samsung Gear S2 - 3G
Case 51.8mm · Lug-to-lug 51.8mm · Thickness 13.4mm · 51g
Sweet Spot
51.8mm on a 55mm wrist
Across the wrist it works — 1.6mm spare each side — but wide enough that the edge of the case back lifts clear of the skin.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 51.8mm.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist1.6mm spare each side
Fills the wrist without reaching the edge.
- Off the wrist13.4mm off the skin
Normal sports-watch height for a wrist this size. (13.4mm case, back against the skin)
- How it seats~9.6mm under the rim
Wide enough that the edge of the case back lifts clear of the skin.
- Weight on the wrist51g
Light enough to forget you have it on. (0.9g per mm of wrist)
Happy with the fit? Check current availability for the Gear S2 - 3G.
Check offer2D Dimension Schematics
The Gear S2 - 3G drawn to scale — from above, and in profile against the wrist.
- Samsung Gear S2 - 3G44mm × 51.8mm · 13.4mm thick
3D preview
Samsung Gear S2 - 3G on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Gear S2 - 3G battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch2 days
How the Gear S2 - 3G ranks on battery
Against the 64 Samsung watches in our database, ranked on each figure Samsung publishes.
- Everyday use2 days#20 of 64
- Capacity300 mAh#35 of 64
What size band does the Gear S2 - 3G take?
Lug width
20mm
Any 20mm strap fits, so you are not restricted to Samsung's own bands. Quick-release pins let you swap without tools — check that a replacement lists 20mm and quick-release before buying.
Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.
Gear S2 - 3G specifications
The figures that decide a purchase, followed by every line Samsung publishes.
- 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
Full specification sheet
77 published lines across 8 groups, unedited
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
- pixel density
- 302 ppi
- width of band
- 20 mm
- water resistance
- Water resistant
- Always-On Display
- has a touch screen
- Watch band is replaceable
- has branded damage-resistant glass
Battery
- charge time
- 2 hours
- battery life
- 2 days
- battery power
- 300 mAh
- has wireless charging
- has a removable battery
- has a rechargeable battery
Sensors
- has GPS
- has a compass
- Has a barometer
- has an accelerometer
- Has a heart rate monitor
Features
- RAM
- 0.51GB
- CPU speed
- 2 x 1 GHz
- release date
- 2015-09-03
- Has a stopwatch
- Has call control
- Has silent alarm
- internal storage
- 4GB
- Has notifications
- Locates your phone
- has voice commands
- Has vibrating alerts
- Can be used to answer calls
Connectivity
- has NFC
- SIM cards
- 1 eSIM
- Wi-Fi version
- Wi-Fi 4 (802.11n)
- supports Wi-Fi
- Bluetooth version
- 4.1
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- Has passcode
- Has auto pause
- has an external memory slot
- Compatible with smart scales
- has a battery level indicator
- Compatible with external heart rate monitors
App & Software
- Ad-free
- Free app
- Tracks BMI
- Has coaching
- Supports routes
- Has achievements
- Has goal setting
- Has exercise diary
- Has weight tracking
- Predicts start date
- Tracks water intake
- Has inactivity alerts
- Has period notifications
- Provides activity reports
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks elevation
- Tracks your sleep
- Tracks steps taken
- Has a route tracker
- Has exercise tagging
- Tracks calorie intake
- Provides sleep reports
- Detects activities automatically
Alternatives to the Gear S2 - 3G
Watches that cover a similar amount of wrist, with the measurements that separate them.
Samsung
Galaxy Watch Active2 LTE Aluminium - 44mm
- Width
- 44mm
- Thick
- 10.9mm
- Weight
- 30g
Samsung
Galaxy Watch Active2 Stainless Steel - 44mm
- Width
- 44mm
- Thick
- 10.9mm
- Weight
- 42g
Samsung
Galaxy Watch Active2 - LTE · Stainless Steel · 44mm
- Width
- 44mm
- Thick
- 10.9mm
- Weight
- 42g
Samsung
Galaxy Watch Active2 - Aluminium · 44mm
- Width
- 44mm
- Thick
- 10.9mm
- Weight
- 30g
Samsung
Galaxy Watch8 - Wi-Fi · 44mm
- Width
- 43.7mm
- Thick
- 8.6mm
- Weight
- 34g
Samsung
Galaxy Watch8 - LTE · 44mm
- Width
- 43.7mm
- Thick
- 8.6mm
- Weight
- 34g
Gear S2 - 3G — Frequently Asked Questions
Will the Samsung Gear S2 - 3G fit my wrist?
The Samsung Gear S2 - 3G looks balanced on flat wrist widths of roughly 55–74mm (about 14.7–19.8cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Samsung Gear S2 - 3G take?
20mm. Any 20mm strap fits, so you are not limited to Samsung's own bands — look for a quick-release fitting if you want to swap without tools.
How long does the Samsung Gear S2 - 3G battery last?
Samsung rates it at 2 days per charge in everyday use.
How does the Samsung Gear S2 - 3G battery compare with other Samsung watches?
At 2 days in everyday use it ranks #20 of the 64 Samsung watches in our database — the top 31% of the range. The full ranking, including GPS and power-saving figures, is on our Samsung battery life comparison.
Is the Samsung Gear S2 - 3G thick for a 44mm watch?
At 13.4mm, thinner than 77% of 44mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Samsung Gear S2 - 3G?
Omega Seamaster Diver 300M Master Co-Axial 43.5 Milano Cortina 2026 Winter Olympics, TAG Heuer Carrera Chronograph Extreme Sport Titanium - Ceramic / Blue / Bracelet, Apple Watch Ultra 3, Amazfit Active 2 all sit within half a millimetre of the Samsung Gear S2 - 3G's 44mm case, so they cover the same amount of wrist.
What is the lug-to-lug of the Samsung Gear S2 - 3G?
51.8mm, against a 44mm case width. Lug-to-lug is the measurement that decides overhang: if it exceeds the flat width of your wrist, the lugs sit past the edge no matter how modest the case diameter looks.
