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Apple Watch Series 9 Aluminum vs Apple Watch Series 7 Aluminum

AppleWatch Series 9 Aluminum

AppleWatch Series 7 Aluminum

The third device is shown on desktop screens only

Apple Watch Series 9 Aluminum Apple Price $400 Full specs

Apple Watch Series 7 Aluminum Apple Price $400 Full specs

General

Announced

September 2023

September 2021

Released

September 2023

October 2021

Colors

PinkSilver

BlueGreen

On both: Red, Starlight, Midnight

Design

Length

45 mm (45 in)41 mm (41 in)

Same on both

Width

38 mm (45 in)35 mm (41 in)

Same on both

Thickness

10.7 mm (45 in)10.7 mm (41 in)

Same on both

Weight

39 g (45 in)32.1 g (41 in)

38.8 (45 in)32 (41 in)

Materials

Ceramic/sapphire crystal backAluminum frame

Glass frontCeramic/sapphire crystal backAluminum frame

Network

2G Network

Yes

3G Network

Yes

4G Network

Yes

GPRS

Yes

EDGE

Yes

SIM

Electronic SIM (eSIM)

Display

Display Type

Retina LTPO OLED

Size

1.9 Inches (45 in)1.69 Inches (41 in)

Same on both

Resolution

484x396 Pixels (45 in)430x352 Pixels (41 in)

Same on both

Pixel Density

326 PPI

Brightness Level

2000 Nits (Peak)

1000 Nits

Display Protection

Ion-X strengthened glass

Features

Always-on Display

Same on both

Hardware

Chipset

Apple S9

Apple S7

CPU Type

Dual-core

GPU

PowerVR

Internal Storage

64 GB

32 GB

Card Slot

—

Software

WatchOS 10

WatchOS

Version

—

8.0

Update To

—

8.1

Camera

Connectivity

Wi-Fi

Wi-Fi 4b/g/n

Wi-Fi 802.11b/g/nDual-band

Bluetooth

5.3

5.0

On both: LE, A2DP

Location

No extras

A-GPS

On both: GPS, BDS, QZSS, GALILEO, GLONASS

NFC

Yes

Media

Loudspeaker

Yes

3.5mm jack

Other specifications

Sensors

Temperature (body)

No extras

On both: Accelerometer, Gyroscope, Barometer, Compass, SpO2, VO2max, Heart Rate, Always-on altimeter

Water/Dust Resistant

50m Water ResistantDust Resistant (IP6X)

Yes - 50m water resistant (IP6X)

Other Features

ECG CertifiedUltra Wideband 2 (UWB)

ECG CertifiedUltra Wideband (UWB)

Charging and Battery

Wireless Charging

Yes

Capacity

308 mAh (45 in)282 mAh (41 in)

309 mAh (45 in)284 mAh (41 in)

Battery Type

Lithium Ion

—

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