Apple Watch Series 1 (42mm) vs Apple Watch Series 7 (45mm) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

9.0
Apple Watch Series 7 (45mm)
Apple Watch Series 1 (42mm) Apple Watch Series 7 (45mm)
Released · April 2015
Released · Oct 15, 2021
1.6-inch
0.5GB · 8GB
1GB · 32GB
250 mAh

Availability

Officially announced
Sep 14, 2021

Design

Dimensions
1.67 x 1.43 x 0.41 inches
42.5 x 36.4 x 10.5 mm
Weight
0.88 oz (25.0 g) 1.34 oz (38.0 g)
Materials
Back: Plastic
Frame: Aluminum
Back: Aluminum
Resistance
Yes; IPX7 Water, Dust; IP6X
Colors
Silver, Gold, Rose Gold, Gray Midnight, Starlight, Green, Blue, Red

Display

Size
1.6-inch, 55.61% screen-to-body
Type
OLED, 450 nits OLED
Resolution
390x312px, 303 PPI 448x368px
Features
Pressure-sensitive, Ambient light sensor

Hardware

System chip
Apple S1P (28 nm) Apple S7
Processor
Dual-core
520 MHz
Cortex-A7
Dual-core
GPU
PowerVR G6200 PowerVR
Memory
0.5GB/8GB 1GB/32GB
Storage expansion
not expandable not expandable
OS
watchOS (6.x, 5.1, 5, 4.x, 3.x) watchOS (9.x, 8.x)

Battery

Type
250 mAh Li - Ion
Charging
Magnetic charging Qi wireless charging

Camera

Connectivity & Features

Bluetooth
4.0 5.0
WLAN
b,g,n
802.11 b, g, n
b,g,n
802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Heart rate, Ambient light sensor Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Blood Oxygen
Location
A-GPS, Glonass, Galileo, BeiDou, QZSS
Other
NFC

Multimedia

Speakers
Loudspeaker Loudspeaker
Additional microphone(s)
Yes

Cellular

3G Bands
1, 2, 4, 5
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM

Alternative variants

With Stainless Steel case
Weight 1.82 oz (51.5 g)
Materials Back: Stainless steel
With titanium case
Weight 1.59 oz (45.1 g)
Materials Back: Titanium
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