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  3. Thickness
Design & durability

Thickness: typical values for smartwatches

Half of smartwatches in the catalog have thickness below 12 mm, and 80% fall between 9.9 mm and 15 mm (636 models with data).

Median12 mm
Median 202612 mm
Typical range9.9 mm – 15 mm
Models636
Distribution

How thickness is distributed

03264951278101214168–9: 219–10: 4810–11: 10711–12: 12712–13: 9813–14: 7514–15: 10915–16: 3216–17: 19Median 12 mm
Percentile10 %25 %50 %75 %90 %
Thickness9.9 mm11 mm12 mm14 mm15 mm

Lower is better for this spec: the 10th percentile is the top tenth of the catalog.

Trends

Median thickness by year

0 mm3.8 mm7.5 mm11 mm15 mm20192020202120222023202420252026
Recent leaders

Lowest thickness

1 Knauermann Lite 4 2026
Knauermann · 2026
Lite 4 2026
1.85″5 days
6 mm
9.0
2 Xcoast Siona 2 Nano
Xcoast · 2025
Siona 2 Nano
1.3″6 days
6.9 mm
7.0
3 Xcoast Siona 2
Xcoast · 2024
Siona 2
1.3″2 days
6.9 mm
7.0
4 Xcoast Siona
Xcoast · 2022
Siona
2 days
6.9 mm
5 Daewoo CNX+ AMOLED Smartwatch
Daewoo · 2025
CNX+ AMOLED Smartwatch
9 days
7 mm
6.7
6 Reflex RA08-2118 Series 8 Activity Tracker
7 mm
7 Garmin Venu X1
Garmin · 2025
Venu X1
2″8 days5 ATM34 g
7.9 mm
7.0
8 Radley RYS08
Radley · 2025
RYS08
1″
8 mm
9 Radley RYS08-2088
Radley · 2025
RYS08-2088
8 mm
10 Fitbit Air
Fitbit · 2026
Air
7 days12 g
8.3 mm
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