Sizometry
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Apple Watch Series 9 45mm in Midnight, Front view

Official manufacturer render.

Apple

Apple Watch Series 9 45mm

Watch2023Released
  • Always-On Retina LTPO OLED
  • Apple S9 SiP
  • 39 g

Available colors

Selected: Midnight

Physical specifications

39 g

Case weight

45.0 mm

Case height

38.0 mm

Case width

10.7 mm

Case thickness

Release and pricing

Announced
September 12, 2023
Released
September 22, 2023

Display

Display technology
Always-On Retina LTPO OLED
Peak brightness
2000 nits
Protection
Ion-X glass (aluminum) / Sapphire (stainless steel)

Performance

Chipset
Apple S9 SiP
Storage
64 GB
Expandable storage
No

Battery & charging

Charging standard
Apple Watch Magnetic Fast Charger
Battery type
Built-in rechargeable lithium-ion

Build & durability

Frame
Aluminum or stainless steel
Front
Ion-X glass or sapphire crystal
Ingress protection
Water resistance 50m; IP6X dust resistance

Connectivity

Cellular
LTE (GPS + Cellular models)
Wi‑Fi
Wi‑Fi 4 (802.11n)
Bluetooth
Bluetooth 5.3
NFC
Yes

Sources and measurement notes

Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.

Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.

Sizometry Analysis

Everyday usability

Estimated from the watch’s size, weight, battery, display, and intended wearing conditions.

  • Wrist comfort

    Moderately noticeable

    You will notice its presence on the wrist, though it should stay manageable for daily use.

  • Sleep comfort

    Acceptable

    Overnight wear should be acceptable for many users, though light sleepers may notice the case.

  • Battery usability

    Data unavailable

    Available battery information is insufficient for a reliable daily-use assessment.

  • Screen and controls

    Excellent

    The large, bright display is easy to read at a glance, with touch input for everyday controls.

  • Workout usability

    Excellent

    Its low weight, water resistance, and GPS support make it well suited to running and gym sessions.

Models and configurations

Storage
64 GB
Connectivity
LTE (GPS + Cellular models)
Colors
MidnightStarlightSilverPink(PRODUCT)REDGoldGraphite

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