Best small vertical mouse for De Quervain tendonitis and thumb pain

A thumb rest is a shape, not a treatment

De Quervain tendonitis is pain along the thumb side of the wrist, and it is not something a product page can diagnose. If the thumb is swollen, catching, or weak, that visit belongs with a clinician. What a listing can tell you is whether the shell gives the thumb a place to rest, whether that rest moves, and whether the body is sized for a short hand. This page stays on those printed lines. It does not claim a mouse will quiet a tendon.

The painful pattern people describe is a thumb that has to pinch, reach, or hold the mouse up. A vertical shell changes the forearm angle. A thumb rest changes what the thumb leans on. Those are different jobs. A mouse can do the first and still make the thumb work a side button or a side wheel. Read the thumb sentence and the control layout together.

The Lift is the short shell that names the rest

On the Logitech Lift listing, one bullet says you rest on the mouse with a softly textured grip and a snug thumb rest. The opening bullet says the mouse is a great fit for small to medium right hands. Product details list 4.3 inches by 2.7 inches and 125 g. A separate bullet names 57 degrees. Six buttons and a 4000 DPI sensitivity row are on the details. The connection is Bluetooth Low Energy or Logi Bolt.

That is the combination this page is willing to name: the rest is in the bullet, and the hand size is in the bullet, and the body is short enough to sit next to the SANWA length rather than next to the MX Vertical. The rest is described as snug, not as a hinge. You do not get a range of thumb positions. You get one shaped ledge on a small-to-medium shell. For a short right hand, one ledge in the right place is often the more honest offer than a hinge on a much larger body.

The Unimouse moves the rest, and it prints a large body

The Contour Unimouse title names an adjustable thumb rest. The bullets go further: set the tilt anywhere from 35 to 70 degrees, then slide, pivot, and rotate the thumb support. Another bullet says the rest moves in all directions and rotates, and that this is meant to ease gripping pressure at the base of the thumb. The hand sentence says right hands of all sizes. Product details list 190 g and item dimensions of 11.9 by 5.6 inches. It is wired by USB-C, with six programmable buttons.

If your only question is “can I move the thumb ledge,” this listing says yes, inside a 35 to 70 degree tilt. If your question is “is the shell small,” the dimension row and the 190 g weight do not say yes. All-sizes wording is the opposite of a petite cap. The photo on the listing is there so you can see whether 11.9 by 5.6 inches is the body or a larger packed measure. Either way, it is not the 4.3 inch line on the Lift. A sore thumb on a short hand should not skip the size row because the hinge sounds kinder.

The MX Vertical rest sits on the big 57-degree shell

The MX Vertical bullet says the 57-degree angle puts the thumb on the thumb rest. That is a real thumb sentence, and it shares the degree figure with the Lift. The product details then list 7.5 by 6 inches and 8 ounces. Eight ounces is about 227 grams. The button row says 4, and the sensitivity row says 4000 DPI. You can want that rest and still be looking at a body that is more than three inches longer than the Lift. For a petite hand, the shared 57-degree phrase is the trap. The size row breaks the tie.

There is a useful contrast inside one brand. Lift and MX Vertical are both Logitech vertical mice with a 57-degree line and a thumb rest. One lists 4.3 by 2.7 inches and 125 g and says small to medium. The other lists 7.5 by 6 inches and 8 ounces and says the form fits a variety of hand shapes. Variety is not a small-hand cap. If the thumb rest is doing the same job in the copy, buy the body that matches the hand you measured.

Side buttons and a side wheel ask the thumb to work

A rest is passive. A side button is a job. The SANWA listing puts back and forward buttons near the thumb and does not describe a rest. The Uineer 3-mode bullet describes a side scroll wheel for horizontal movement, and it says the mouse weighs 105 grams in that same bullet while the product details list 3.2 ounces. A wheel under the thumb is extra motion on the side that already hurts. That can be exactly what you want for spreadsheets, and it can be exactly what a De Quervain flare does not want. The listing does not sort those readers. You do, by noticing which control the thumb has to drive.

The Lift also has buttons, six of them, described as easy to reach and customizable. “Easy to reach” can still mean the thumb travels. The difference is that the Lift page bothers to name a rest, and the body is the short one. You should still look at the photo and see whether the extra buttons sit on the thumb or forward of it. The page cannot click them for you.

The pick, and the case that would change it

Name the Lift when the hand is the short right one and you want a thumb ledge on a 4.3 by 2.7 inch, 125 g shell. Name the Unimouse only when you have looked at the 11.9 by 5.6 inch line and the 190 g weight and you still want the moving rest more than you want a short body. Name the MX Vertical when the hand is large enough for 7.5 by 6 inches and you want the 57-degree rest on that bigger shell. Do not name a mouse that merely puts buttons near the thumb as if it had a rest. The SANWA page is the short-body winner on the under 6.5 inch page, and it does not earn this page.

Nothing here was a tendon exam, and nothing here was a week of wearing the rest. If the thumb is in a flare, the lighter wired shell on the lightweight page is a different question: less mass to push, and no thumb-rest sentence. You can need both a rest and a low weight, and no single listing in this set prints a snug rest and a sub-100-gram weight. The Lift at 125 g is the compromise this page will actually defend.