Logitech Signature M650 Wireless Mouse vs Logitech M720 Triathlon
Get the Logitech Signature M650. Unless you switch between two or three computers, or want a free-spinning wheel — then the M720 Triathlon.
Logitech Signature M650 Wireless Mouse
A cheap, well-built, contoured work mouse with quiet clicks, in a regular size, a large M650 L and a left-handed version. Not vertical, and no thumb wheel.
Logitech M720 Triathlon
A cheap, comfortable contoured mouse that switches between three devices, with a free-spinning wheel and a thumb button. It's not vertical, and it's small for large hands.
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Both are cheap, comfortable contoured mice rather than vertical ones. The M650 costs less, comes in a large size and a left-handed version and has quiet clicks; the M720 pairs with three devices and adds a free-spinning wheel and a thumb button, but it's small for large hands.
- —You use one computer.
- —You have large hands or you're left-handed.
- —You want to spend as little as possible.
- —You switch between a laptop, desktop and tablet.
- —You scroll long pages and want a free-spinning wheel.
- —Your hands are small to medium.
What verified owners report
Only reviews from checked buyers count, and every 1–3 star review is read by us. How we do this
Owners love how comfortable and quiet it is, and left-handers are glad there's a version for them. The few complaints are a dropping connection, a scroll wheel that's too fast or too slow, and clicks some find too light.
- ✓Comfortable in the hand
- ✓Quiet clicks
- ✓Precise and responsive
- −Stops responding or drops the connection
Owners love switching between three computers at a button press, how comfortable it is and its extra buttons. The main complaint is a scroll wheel that keeps scrolling after you stop, followed by dropped connections and lag on Macs.
- ✓Easy switching between three computers
- ✓Comfortable, fits the hand
- ✓Responsive
- −Scroll wheel keeps scrolling or is inaccurate
Key differences
Pros and cons
- +Comfortable contoured shape, in two sizes
- +Left-handed version
- +Quiet clicks, Bluetooth or USB receiver
- −It pairs with only one device at a time.
- −No thumb wheel; holding a side button turns the main wheel into a sideways scroll.
- −Over a long working day it's less comfortable than a dedicated ergonomic mouse.
- −Runs on an AA battery rather than recharging.
- +Comfortable contoured shape
- +Switches between three devices
- +Free-spinning scroll wheel
- −Small for large hands.
- −The sensitivity can't be changed with a button on the mouse.
- −Runs on an AA battery rather than recharging.
- Is the Signature M650 worth it?
- Is the M720 Triathlon worth it?
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How we reached this verdict
We compared independent expert reviews with the manufacturer's specifications, then checked it's sold at a major retailer where you live. We don't test products ourselves.
Sources: RTINGS, Engadget, manufacturer specifications.
Owner reports for the Signature M650: 135 verified buyer ratings at Currys and Best Buy (Canada), read October 2026.
Owner reports for the M720 Triathlon: 62 verified buyer ratings at Currys and Best Buy (Canada), read October 2026.