Apple Watch Series 7 (45mm) vs Apple Watch Series 1 (42mm) 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 7 (45mm) Apple Watch Series 1 (42mm)
Released · Oct 15, 2021
Released · April 2015
1GB · 32GB
0.5GB · 8GB
1.6-inch
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
1.34 oz (38.0 g) 0.88 oz (25.0 g)
Materials
Back: Aluminum Back: Plastic
Frame: Aluminum
Resistance
Water, Dust; IP6X Yes; IPX7
Colors
Midnight, Starlight, Green, Blue, Red Silver, Gold, Rose Gold, Gray

Display

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

Hardware

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

Battery

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

Camera

Connectivity & Features

Bluetooth
5.0 4.0
WLAN
b,g,n
802.11 b, g, n
b,g,n
802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Blood Oxygen Accelerometer, Gyroscope, Heart rate, Ambient light sensor
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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