Echo (4th gen), Echo Pop, Echo Show 5, Google Nest Mini, Nest Hub, HomePod mini, HomePod (2nd gen) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/smart-speakers/  (CC BY 4.0)
Basis: Manufacturer spec pages
Catalog version: 2026-10-20

Sizes: see table below
- Echo (4th gen): 144 × 144 × 133 mm sphere, 970 g. Echo Pop: 99 × 83 × 91 mm half-sphere, 196 g. Echo Show 5 (3rd gen): 147 × 82 × 91 mm, 456 g. (Echo Dot 5th gen has its own entry.)
- Google Nest Mini (2nd gen): Ø98 × 42 mm, 181 g, with a wall-mount keyhole on the back. Nest Hub (2nd gen): 177.4 × 120.4 × 69.5 mm, 558 g.
- HomePod mini: Ø97.9 × 84.3 mm, 345 g; HomePod (2nd gen): Ø142 × 168 mm, 2.3 kg. Both are fabric spheres on a silicone foot; mounts should cradle below the equator and never cover the top touch surface.
- Vintage-radio shells for any of these: see the 1950s tabletop radio form entry for the proportions.

model  height_mm  width_mm  depth_mm  weight_g  display_in
Echo (4th gen)  133  144  144  970  
Echo Pop  91  99  83  196  
Echo Show 5 (3rd gen)  82  147  91  456  5.5
Nest Mini (2nd gen)  42  98  98  181  
Nest Hub (2nd gen)  120.4  177.4  69.5  558  7.0
HomePod mini  84.3  97.9  97.9  345  
HomePod (2nd gen)  168  142  142  2300  

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Amazon (official): Echo (4th gen) technical details — web — Manufacturer spec page — https://www.amazon.com/dp/B07XKF5RM3
- Google (official): Nest Mini tech specs — web — Manufacturer spec page — https://store.google.com/product/google_nest_mini_specs
- Apple (official): HomePod mini tech specs — web — Manufacturer spec page — https://support.apple.com/en-us/111912

Xem Studio scan: planned. Mesh $8, STEP $19, target tolerance ±0.15 mm.
API: https://xemstudio.com/api/geometry?object=smart-speakers