Samsung Galaxy Watch 3 (45mm) vs Samsung Galaxy Watch 4 (40mm) Specs Comparison

Design

Dimensions
1.82 x 1.77 x 0.44 inches 46.2 x 45 x 11.1 mm
Weight
1.90 oz (53.8 g)
Materials & Colors
Stainless steel: Mystic silver, Mystic black Titanium: Mystic black	Black, Silver, Green, Gold
Resistance
Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified	Water (up to 50 meters), Dust; IP68; MIL-STD-810 certified

Display

Size
1.4-inch	1.2-inch
Resolution
360x360px, 364 PPI	450x450px, 530 PPI
Technology
Super AMOLED	Super AMOLED
Screen-to-body
30.42 %
Features
Scratch-resistant glass (Corning Gorilla Glass DX+), Ambient light sensor	Scratch-resistant glass (Corning Gorilla Glass DX+), Ambient light sensor

Hardware

System chip
Samsung Exynos 9110 (10 nm)	Exynos W920 (5 nm)
Processor
Dual-core 1150 MHz ARM Cortex-A53
GPU
Mali-T720 MP1
RAM
1GB	1.5GB
Internal storage
8GB (eMMC)	16GB
Storage expansion
not expandable
OS
Tizen	Wear OS
Compatible devices
Android 5.0 or later and with more than 1.5GB of RAM iPhone 5 or later models with iOS 9.0 or later

Battery

Capacity
340 mAh	247 mAh
Type
Li - Ion	Li - Ion
Charging
Qi wireless charging	Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
802.11 b,g,n	802.11 a,b,g,n,ac,dual-band
Location
GPS, Glonass, Galileo, BeiDou	GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Heart rate, Barometer, ECG	Accelerometer, Gyroscope, Compass, Heart rate, Barometer, ECG, Blood Oxygen
Other
NFC, ANT+	NFC

Multimedia

Speakers
Loudspeaker	Loudspeaker

Cellular

Data Speed
LTE, HSPA, HSUPA
SIM type
eSIM

Buyers information

MSRP
$ 480 / € 496

Availability

Officially announced
Aug 05, 2020	Aug 11, 2021

Alternative variants

non-LTE version

MSRP	$ 430 / € 447

Links

Full specifications
Samsung Galaxy Watch 3 (45mm) Specs	Samsung Galaxy Watch 4 (40mm) Specs
PhoneArena Review
Samsung Galaxy Watch 3 (45mm) Review	Samsung Galaxy Watch 4 (40mm) Review