Apple Watch Series 4 40mm Stainless Steel
- vs -
Apple Watch Series 9 41mm Stainless Steel

Product comparison

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Device Information

Silver, Space Black, Gold Colours Gold, Silver, Graphite
16 GB Storage 64 GB
1.00 GB Memory 1.00 GB
Watch OS Operating System Watch OS
699 $ / 729 € Price from 699 $ / 799 €
Q3/2018 Release Date Q3/2023

Dimensions / Housing

Rectangular Display form Rectangular
40.0 mm Height 41.0 mm
34.0 mm Width 35.0 mm
10.7 mm Depth 10.7 mm
40 g Weight 32 g
Stainless Steel Housing Material Stainless Steel
Waterproof 50m Water Resistance Waterproof 50m
-- MIL Standard --

Processor

Apple S4 Name Apple S9
Apple Manufacturer Apple
2 / 2 Cores / Threads 2 / 2
1.59 (1.59) GHz Frequency 0.00 GHz
7 nm Structure 3 nm
S4 Architecture S9
Q3/2018 Release Date Q3/2023

Screen

1.6 inch Size 1.7 inch
OLED Technology OLED
Sapphire Glass Glas Type Sapphire Glass
324x394 (326 ppi) Resolution 352x430 (326 ppi)
1000 nits Brightness 2000 nits
Yes Always On Display Yes

Battery

Rechargeable Battery Type Rechargeable Battery
225.00 Wh Capacity 282.00 Wh
No Solar module No
18.00 h Battery Life 18.00 h
Magnetic Charging Charging Magnetic Charging

Connectivity

802.11n (Wi-Fi 4) Wireless LAN 802.11n (Wi-Fi 4)
Bluetooth 5.0 Bluetooth Bluetooth 5.3
eSIM SIM card eSIM
4G (LTE) Cellular 4G (LTE)
Yes NFC Yes
No ANT+ No
No UWB Yes
-- Ports --

Sensors

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

Measurement Functions

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

Manufacturer

A1975, A2007 Part-no A2982, A2983
Link to manufacturer Datasheet Link to manufacturer

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