Apple Watch Series 10/11 (42, 46 mm), Ultra 2/3 (49 mm), SE (40, 44 mm) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/apple-watch/  (CC BY 4.0)
Basis: Apple tech specs; band compatibility groups per Apple
Catalog version: 2026-10-20

Sizes: see table below
- Series 10 and Series 11: 42 mm case 42 × 36 × 9.7 mm (about 30 g aluminium); 46 mm case 46 × 39 × 9.7 mm (about 36 g). Ultra 2 and Ultra 3: 49 × 44 × 12 mm, 61 g titanium. SE (2nd gen): 40 × 34 × 10.7 mm and 44 × 38 × 10.7 mm.
- Band groups: 38/40/41/42 mm cases share bands (lug slot 20 mm wide); 44/45/46/49 mm cases share bands (lug slot 24 mm). Lug slot depth about 2.5 mm; the band connector is a 1.5 mm thick tongue with spring-loaded buttons.
- Charger puck: Ø27.9 mm (magnetic fast charger) × 6.3 mm; a dock needs a Ø28.2 pocket and a 60° cradle for nightstand mode.

model  height_mm  width_mm  depth_mm  weight_g  display_in
Series 10 / 11, 42 mm  42  36  9.7  30  1.65
Series 10 / 11, 46 mm  46  39  9.7  36  1.81
Ultra 2 / Ultra 3, 49 mm  49  44  12.0  61  1.92
SE 2, 40 mm  40  34  10.7  26  1.57
SE 2, 44 mm  44  38  10.7  33  1.78

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Apple (official): Apple Watch Series 10 tech specs — web — Manufacturer spec page — https://support.apple.com/en-us/121202
- Apple (official): Apple Watch Ultra 2 tech specs — web — Manufacturer spec page — https://support.apple.com/en-us/111832
- Apple (official): Apple Watch band compatibility — web — Manufacturer spec page — https://support.apple.com/en-us/108774
- Apple (official): Accessory Design Guidelines for Apple Devices (dimensioned drawings of every current device) — PDF — Apple developer terms; drawings for accessory design — https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf

Xem Studio scan: not planned; the official CAD above covers it.
API: https://xemstudio.com/api/geometry?object=apple-watch