(Smart)watch size. Lists of thin and small wrist ones.

The limit of the silly trend of oversized watches obviously is relative to the size of the arm

(2024-11-09 lists updated, H06, DM75 and others)

Watches suitable for an arm

First the same images used in the collage above with links to reviews (click images to enlarge)

TN88 and E400

T8 and T8 Mini

It really sounds as a tautology, but a watch fitting on an arm will be ON the arm, that is including the ends, not hoovering over, (or even worse extending beyond it)…

My arm is about 180-185mm (depending on temperature and time of day), the width is about 68mm.

And it is quite clear from the image above, that the 53mm long TN88 with the ends hovering in mid air is grossly oversized for my arm.

The 52.5mm long E400 is also  grossly oversized (not just ugly because of the extreme thickness).

The 48mm long, ø43mm watch (T8) is if not too big for my arm, certainly near the limit….

The 46mm long ø40mm watch T8 Mini is a better fit to my arm, though not by much.

Note that there is not a huge difference in the diameter of the two middle ones, E400 and T8 with ø44.6mm vs ø43.0mm, so that is not the right thing to go for looking for a fitting watch. It is clearly the length of the case as well as the thickness that are the limiting factors here AND whether the band-arms points downwards following the shape of a human arm or not.

BTW the original 2022 T8 had LONGER arms, but as the they pointed downwards following the arm, it worked the same on my arm as the newer 2023 T8, just with a larger gap between the end of the watch and the case it self.

(Though for minor arms than mine, the 2022 version looked (even) more oversized)

Unfortunately the manufacturers rarely show a clear watch profile and how the band can follow human arms of various sizes. The fewest even give the overall length! And many CLAIMS that it ‘suits’ MUCH smaller arms than it actually do, just telling the limits of how close/far the accompanying band can go, not in any way related to whether it suits that arm-size!

Here TN88 side by side with the T8 Mini, both with their bands set for the my arm-size. The problem with the TN88 is quite clear here, it might fit a much larger arm around 25-30cm though.

Personally I would have preferred if the T8 Mini had used 20mm and not 18mm bands. Half the diameter seems suitable, less make the watch look more disproportional/oversized

An arm profile can be idealised as two half circles and two straight lines (It is closer to reality than an ellipsoid). Here a sketch

As a simplified shape for

Image taken from here.

So for my arm, anything much beyond 30-35mm, really should point more or less downwards… The T8 start pointing downwards at about 38mm, and the T8 Mini at 34mm…

Actually the 48mm length of the T8  is one of the smaller smart watches you can get today….

 

Decent thickness smartwatches

It is not at all easy to find watches less than about 10mm thick, almost all are ‘two watches thick’…
I included some watch-like “smartbands” as well.

I tried to make and maintain a list in a reddit post, copied in here.  Some I’ve reviewed here.

Thickness Diameter ø or width Total length Stamina weeks Name Year
7.5mm / 6.8mm / 4mm ø41.6mm 47.7mm 2.5 weeks Kushang DW01 2024
7.8mm / 6.9mm / 4.0mm ø43.0mm 48.2mm 6 weeks Sovogue T8 or ST08 2022
8.7mm / 6.9mm / 4.6mm ø41.0mm 46.5mm ??? weeks ?Vanssa? H06 (flat) 2024
8.05mm / 6.95mm / 4.0mm ø43.0mm 48.2mm 2 weeks Sovogue T8 Pro 2024
8.05mm / 6.95mm / 4.0mm ø40.0mm 46.0mm 1½ weeks Sovogue T8 Mini 2024
9.1mm / 7.3mm / 5.0mm ø41.0mm 46.5mm ??? weeks ?Vanssa? H06 (curved) 2024
— / 7.5mm / 7.5mm ø38.5mm ~42.1mm ~0.3 week Pebble Time Round 2015
— / 7.75mm / 5mm ø43.1mm 48.8mm 2 weeks ?????? DA09/N89. 2024
— / 8.3mm / 7mm ø46.2mm 50.5mm ~2 weeks NpuOne NWZ01 / MT55 2024
— / 8.4mm / 7mm ø46.2mm 52.2mm ~2 weeks? ???????? MT56 2024
8.5mm / 7.5mm / ??? ø46.5mm 53mm ~2 weeks ?? Funost TN88 2023
8.7mm / 8.1mm / 8.1mm ø42.2mm 47.6mm ~2 weeks ?? Sovogue R18 or SR18 2021
9.9mm / 9.0mm / ??? 38.0mm 50.8mm ~2 weeks ?? ???????? Q9 PRO GT2 ?
~10.8mm / 9.1mm / ??? 36.7mm ~48mm ~2 weeks Amazfit GTS4 mini 2022
~10-8mm / 9.25mm / ??? ø42.83mm ~45.6mm ~2 weeks Amazfit GTR mini 2023
??? / 9.5mm / ??? ø43mm ~43mm ~0.6 weeks Polar Ignite 3 2023
??? / 9.5mm / ??? ø41.3mm ~48mm ~1 week Huawei GT5 41 2024
~12mm / 9.9mm / ??? 36.3mm ~50mm ~1.4 week Huawei Watch Fit 3 2024
10.5mm / 9.99mm / ??? 26.2mm 43.4mm 2 weeks Huawei Band 7 2022
??? / ??? / 8.99mm 24.54mm 43.45mm ~2 weeks Huawei Band 8 2023
??? / ??? / 8.99mm 24.86mm 43.45mm ~2 weeks Huawei Band 9 2024
??? / 10.0mm / ??? 25.5mm 48.0mm ~2 weeks ?? ?????? ZX19 2022
~12mm / 10.1mm / ??? ø35.4mm ~43.6mm ~0.7 week Garmin Lily 2 2024
– / 10.3mm / 10.3mm ø35.9mm 35.9mm ~0.6 week ???? DM75 2024
11.4mm / 10.6mm / 10.6mm 29.7mm 49.4mm 2 weeks Oppo Watch Free 2022

 

Decent length smartwatches

It is not at all easy to find the few watches less 45-46mm long, suitable for minor wrists…
I included some watch-like “smartbands” as well.

I tried to make and maintain a list in a reddit post, copied in here.  Some I’ve reviewed here.

Thickness Diam./width Total length Stamina weeks Brand & Model Year
– / 10.3mm / 10.3mm ø35.9mm 35.9mm ~0.6 week ???? DM75 2024
??? / ~13mm / ??? ø37mm ~41mm ~4 weeks Withing Scanwatch2 light 37 2023
??? / 13.4mm / ??? ø38mm ~42mm ~4 weeks Withing Scanwatch2 38 2023
– / 7.5mm / 7.5mm ø38.5mm ~42.1mm ~0.3 weeks Pebble Time Round 2015
??? / 12mm / ??? ø38mm ~42.6mm ? weeks RA03-2044 ?
??? / 9.5mm / ??? ø43mm ~43mm ~0.6 week Polar Ignite 3 2023
10.5mm/9.99mm/? 26.2mm 43.4mm 2 weeks Huawei Band 7 2022
??? / ??? / 8.99mm 24.54mm 43.45mm 2 weeks Huawei Band 8 2023
??? / ??? / 8.99mm 24.86mm 43.45mm 2 weeks Huawei Band 9 2024
~12mm / 10.1mm / ??? ø35.4mm ~43.6mm 0.7 week Garmin Lily 2 2024
??? / 12mm / ??? ø35.2mm ~44mm 0.7 Week Unknown Chinese ?
~10.8mm / 9.25mm / ??? ø42.83mm ~45.6mm ~2 weeks Amazfit GTR mini 2023
8.05 / 6.95mm / 4.0 ø40.0mm 46.0mm 1½ Weeks Sovogue T8 Mini 2024
??? / ??? / 9.0mm ø40.4mm ~46mm ~¼ week Samsung Watch 6 40mm 2023
??? / ??? / 9.7mm? ø40.4mm ~46mm ~¼ week Samsung Watch 7 40mm 2024
~13mm / 11mm / ??? ø38mm ~46mm ~1¼ week Garmin Lily 2 Active 2024

 

Options from “known” brands

Garmin Lilly 2

It is a shame that the only real smart watch from a known band with a decent size, though a bit thick, the Garmin Lilly 2, has these clumsy (and IMHO ugly) band-attachments, otherwise it (despite the 12mm thickness) would have suited many minor arms, And could have been fairly lady-like.

 

Polar Ignite 3

From an at the least somewhat known brand is the Polar Ignite 3, and the numbers look fine. But it has a really strange profile with the band attached under the watch, so it looks like a watch with a display-disc glued on top, coin-on-watch design. certainly not a a very wearable form, that will catch any sleeve, and generally just sticks out oddly… Too bad, an in many ways otherwise interesting watch (despite an over 5mm wide bezel-ring… display covers a mere 57% of the ‘coin’).

 

Amazfit GTR Mini

The Amazfit GTR Mini have a similar odd coin-on-watch design as the Polar Ignite 3, and also a mere 57.6% of the ‘coin’ covered by the display …

Of the two I would certainly prefer the Polar.