Samsung Galaxy Watch 4 40mm LTE
- vs -
Samsung Galaxy Watch 3 45mm LTE

Product comparison

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Device Information

Black, Green, Silver, Pink Gold Colours Mystic Black, Mystic Silver
16 GB Storage 8 GB
1.50 GB Memory 1.00 GB
Wear OS Operating System Wear OS
299 $ / 319 € Price from 479 $ / 499 €
Q3/2021 Release Date Q3/2020

Dimensions / Housing

Round Display form Round
40.4 mm Height 46.2 mm
39.3 mm Width 45.0 mm
9.8 mm Depth 11.1 mm
26 g Weight 54 g
Aluminum Housing Material Stainless Steel
Waterproof 50m Water Resistance Waterproof 50m
-- MIL Standard --

Processor

Samsung Exynos W920 Name Samsung Exynos 9110
Samsung Manufacturer Samsung
2 / 2 Cores / Threads 2 / 2
1.18 (1.18) GHz Frequency 1.15 (1.15) GHz
5 nm Structure 10 nm
ARM Cortex-A55 Architecture ARM Cortex-A53
Q3/2021 Release Date Q4/2019

Screen

1.2 inch Size 1.4 inch
AMOLED Technology AMOLED
Glass (Corning Gorilla Glass DX+) Glas Type Glass (Corning Gorilla Glass DX)
396x396 (466 ppi) Resolution 360x360 (363 ppi)
-- Brightness --
Yes Always On Display Yes

Battery

Rechargeable Battery Type Rechargeable Battery
247.00 Wh Capacity 340.00 Wh
No Solar module No
30.00 h Battery Life 42.00 h
Magnetic Charging Charging Magnetic Charging

Connectivity

802.11n (Wi-Fi 4) Wireless LAN 802.11n (Wi-Fi 4)
Bluetooth 5.0 Bluetooth Bluetooth 5.0
eSIM SIM card eSIM
4G (LTE) Cellular 4G (LTE)
Yes NFC Yes
No ANT+ No
No UWB No
-- Ports --

Sensors

Yes Acceleration Yes
Yes Barometer Yes
No Thermometer No
Yes Gyroscope Yes
Yes GPS Yes
Yes Compass No

Measurement Functions

Yes Hear Rate Yes
Yes ECG Yes
Yes Blood Pressure Yes
Yes Blood Oxygen Yes
No Skin Temperature No

Manufacturer

SM-R865 Part-no SM-R845
Link to manufacturer Datasheet --

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