Logitech M240: Specs, Features, Pros & Cons
A cheap Bluetooth mouse that does three things well and makes no pretence about the rest. The first is the click: Logitech's silent mechanism cuts the noise by around ninety per cent while keeping the tactile feel, and it genuinely works in a shared office or next to a sleeping person.
The second is battery life — around eighteen months from a single pre-installed AA. The third is that it is ambidextrous, so left-handed users get a real option at this price. Everything else is deliberately ordinary.
Category strengths
Where the Logitech M240 beats the average
- Much longer battery life ?13,140 h vs 1,490.11 h (avg)
- A lighter build ?73.8 g vs 91.95 g (avg)
- Has software customisation ?
Where the Logitech M240 trails the average
- A much lower max sensitivity ?4,000 DPI vs 20,827.14 DPI (avg)
- Fewer connection options ?
- Fewer buttons ?3 vs 7.59 (avg)
- No onboard memory ?
- No USB-C charging ?
- No quick charge ?
- No adjustable lift-off distance ?
- No RGB lighting ?
- No free-spin scroll wheel ?
- No wireless charging ?
Editor’s note
The M240 Silent is a cheap Bluetooth mouse that does three things well and makes no pretence about the rest.
The first is the click. Logitech's SilentTouch mechanism cuts click noise by about 90 per cent while keeping the tactile feel, and it genuinely works — this is a mouse you can use in a shared office, a library or next to a sleeping person without anyone noticing. The second is battery life: 18 months from a single pre-installed AA, helped by auto-sleep. You will likely lose this mouse before you change its battery. The third is that it is ambidextrous, so left-handed users get a real option at this price.
The limitations are the point of the design rather than oversights. It is Bluetooth-only, with no USB dongle, so it will not work with a machine that has no Bluetooth or with a BIOS screen before the OS loads. There are three buttons and a ratcheted line-by-line wheel — no side buttons, no free-spin, no horizontal scroll. Tracking is a basic optical sensor with a 1,000 DPI default and a 4,000 DPI ceiling, which is fine for documents and browsing and not intended for anything faster.
At 99 x 60 x 39 mm and 73.8 grams it is a small mouse. If you have large hands you will be fingertip-gripping it whether you meant to or not.
Buy it as a travel or second mouse, for a quiet office, or for anyone who just wants a reliable pointer with no dongle to lose.
Do not buy it for gaming, for detailed design work, or if you rely on extra thumb buttons. Logi Options+ can remap the three it has, but it cannot add more.
Specifications
Quality bars are generated automatically against 69 other mice.
Sensor & tracking
A higher maximum DPI moves the cursor further per inch of movement.
How fast you can move the mouse before it stops tracking accurately.
The acceleration the sensor handles without losing tracking.
The optical sensor model (e.g. PixArt PAW3395).
How often the mouse reports its position; higher feels more responsive.
Tune the height at which the sensor stops tracking.
Design & handling
Lighter mice are easier to flick and less tiring; lower is better for most players.
The overall length of the mouse.
The overall width of the mouse.
The overall height of the mouse.
More programmable buttons add functionality.
The grip styles the shape suits.
Which hands the shape supports.
The material of the glide feet (e.g. PTFE).
The physical pointing-device style.
A tilt wheel or dedicated thumb wheel scrolls horizontally.
The wheel can switch to a low-friction mode for rapidly scrolling long documents.
Switches & latency
The delay from pressing a button to the computer receiving it; lower is better.
The main-button switch technology or model.
The manufacturer-rated click durability.
Lets you tune debounce time to balance speed and double-click protection.
Connectivity
The supported connection types.
The maximum wireless report rate.
The cable type (e.g. flexible paracord USB-C).
Charges over the modern reversible USB-C connector.
Battery
How long the mouse lasts on a charge (wireless).
The rated capacity of the mouse battery.
Whether the mouse uses a replaceable cell or an internal rechargeable battery.
A short charge gives hours of use.
Recharges on a compatible pad or mat.
Features
Stores profiles on the mouse to use without software.
Companion software for remapping buttons and DPI.
Tune the balance with removable weights.
Customisable RGB lighting.
Specs last verified August 13, 202622 of 34 specs verified (65%)Unverified specs show as Unknown — never estimated, never scored
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Ratings & reviews
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The bottom line
The Logitech M240 earns a VS Score of 32, trailing most of the 70 mice we compare here, at least on the spec sheet. It stands out for much longer battery life, a lighter build and software customisation. Just be aware of a much lower max sensitivity and fewer connection options before you buy. Weigh those trade-offs against what matters most to you.
The VS Score is calculated from the weighted specifications above, measured against every other mice we track — a shortlisting guide, not a substitute for your own priorities. See how we score.
