Samsung Galaxy Watch 46mm — case dimensions and design

Samsung · 2018

Galaxy Watch 46mm Size, Dimensions & Wrist Fit

Case Width

49mm

Thickness

13mm

Lug-to-Lug

46mm

Weight

63g

The Galaxy Watch 46mm looks in proportion on wrists of 14.5–20.5 cm (5.7–8.1 in) round, and fills the wrist at 15–17 cm (46mm lug to lug).

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Does the Galaxy Watch 46mm fit your wrist?

Wrist round (mm left each side)	46mm
14 cm / 5.5 in	Overhangs (0.4mm over)
15 cm / 5.9 in	Bold (1.2mm)
16 cm / 6.3 in	Sweet spot (2.8mm)
17 cm / 6.7 in	Balanced (4.4mm)
18 cm / 7.1 in	Balanced (6mm)
19 cm / 7.5 in	Balanced (7.6mm)
20 cm / 7.9 in	Balanced (9.3mm)

How the fit model works · Size chart for every wrist

The Galaxy Watch 46mm in short

63g on the wrist. Lighter than 86% of the 7 smartwatches 49mm across that we have weights for.
Rated for 3 days of use per charge.
Water rated to 50 m.
1.3 inches AMOLED display, always-on capable.
Takes 22mm bands.

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Galaxy Watch 46mm battery life

Published runtime

Battery life3 days

Charges in 2 hours

Where it ranks among Samsung watches

Everyday use3 days#4 of 64
Capacity472 mAh#4 of 64

See all 64 Samsung watches ranked by battery life

Settings, the 24-hour idle test and known firmware drains →

2D Dimension Schematics

Top view

Side view

Samsung Galaxy Watch 46mm 49mm × 46mm · 13mm thick

3D preview

Samsung Galaxy Watch 46mm on a wrist

What size band does the Galaxy Watch 46mm take?

Lug width

22mm

Alternatives to the Galaxy Watch 46mm

Galaxy Watch 46mm — Frequently Asked Questions

Is the Samsung Galaxy Watch 46mm thick for a 49mm watch?

At 13mm, thinner than 86% of the 7 smartwatches 49mm across that we track, so it slides under a cuff more easily than most of its size.

Galaxy Watch 46mm specifications

Battery life: 3 days
Display: 1.3 inches
Resolution: 360 x 360 px
Water rating: 5 ATM
Strap: 22 mm
Storage: 4GB
Charging: 2 hours

Show all specificationsSamsung's published specification, for reference · checked September 2026

Design

width: 49
height: 46
volume: 29.3 cm³
weight: 63 g
thickness: 13
ATM rating: 5 ATM
resolution: 360 x 360 px
screen size: 1.3 inches
Display type: OLED/AMOLED
Has a display: Yes
pixel density: 391 ppi
width of band: 22 mm
water resistance: Waterproof
Always-On Display: Yes
has a touch screen: Yes
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: 3 days
battery power: 472 mAh
has wireless charging: Yes
has a removable battery: No
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: 1.15GB
CPU speed: 2 x 1.15 GHz
release date: 2018-08-24
Has a stopwatch: Yes
Has smart alarm: No
warranty period: 1 years
Has call control: Yes
Has silent alarm: Yes
internal storage: 4GB
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
Can be used to answer calls: Yes
has irregular heart rate warnings: No
Has a built-in camera remote control function: Yes

Connectivity

has NFC: Yes
SIM cards: 1 eSIM
Wi-Fi version: Wi-Fi 4 (802.11n)
supports ANT+: No
supports Wi-Fi: Yes
supports Galileo: No
Bluetooth version: 4.2
has a cellular module: Yes
Is compatible with iOS: Yes
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: No
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: No
Provides sleep reports: Yes
Detects activities automatically: Yes
Has a stroke counter for swimming: Yes

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