If your day moves between spreadsheets, coursework and a second computer, a gaming mouse may leave out the feature you need most. These two Logitech models illustrate the trade-off: easier device switching and scrolling, or a lighter mouse built around gaming on one system.
Start with the M720 if work across multiple devices is the priority. Start with the G305 if gaming on one computer is the priority. Neither is an automatic upgrade over a mouse that already fits your hand and does its job.
The deciding question is practical: what frustrates you now—switching computers, scrolling through documents, or moving a heavy mouse in games? Pay for the feature that addresses that problem.
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| Buying consideration | M720 Triathlon | G305 LIGHTSPEED |
|---|---|---|
| Connection | Bluetooth or Unifying USB receiver | LIGHTSPEED USB receiver; no Bluetooth |
| Device switching | Easy-Switch between three paired devices | No equivalent three-device switching |
| Scrolling | Free-spinning or stepped scrolling; tilt wheel | Conventional wheel; no left/right tilt |
| Size and weight | 115 × 74 × 45mm; 135g with AA battery | 116.6 × 62.15 × 38.2mm; 99g with AA battery |
| Power | One replaceable AA; up to 24 months claimed | One replaceable AA; up to 250 hours in performance mode claimed |
| Advanced settings | Logi Options+ | Logitech G HUB |
Sources: Logitech’s M720 specifications and G305 specifications. Battery figures use different usage conditions and are not a head-to-head endurance test. Neither mouse charges through a USB cable.
Good for: someone moving between a work laptop and personal computer, with documents or wide spreadsheets to navigate. Bluetooth can leave a USB port free.
The compromise: a fuller right-handed shape and more weight. Those are reasons to check fit, not proof of comfort for every hand.
Skip it if: your main goal is a lighter gaming mouse, you need a left-handed design, or you will never use its switching and scrolling features.
Check M720 on AmazonGood for: a buyer who wants a smaller, lighter option than the M720 and can leave its receiver connected to one computer.
The compromise: no Bluetooth and no M720-style device switching. A USB-C-only laptop needs a suitable USB-A adapter or hub for the receiver.
Skip it if: you need receiver-free connectivity, frequent computer switching, or a substantially lighter modern gaming mouse. Its 99g specification is relative to the M720, not a claim of class-leading weight.
Check G305 on AmazonFor more on the gaming option, see our G305 buying guide. The manufacturer’s G305 page describes the HERO sensor and LIGHTSPEED system; those specifications do not establish how either mouse will feel in your games.
The M720 uses Unifying; the G305 uses LIGHTSPEED. Do not assume the receiver already in your laptop will work. Logitech also says Bolt and Unifying cannot be used interchangeably. Match the exact device and receiver family.
Compare the current delivered prices of the exact models. If the M720 costs more, ask whether its switching and scrolling solve a daily inconvenience. If the G305 costs more, ask whether gaming is important enough to give up Bluetooth and multi-device convenience. A discount badge does not answer either question.
Skip both if you are replacing a working mouse only because a sale countdown is running. If your real problem is too few laptop ports, first assess the whole setup with our USB-C hub comparison.
M720: a conditional choice for switching devices and document-heavy work. G305: a conditional choice for one-computer gaming with a dedicated receiver. Confirm fit and keep the one that improves your routine—not the one with the more dramatic specification label.
We checked Logitech product and support documentation and matched the Amazon listings to the black M720 Triathlon and black G305. We have not tested click latency, battery endurance, durability or comfort, and have not verified a live Amazon discount. The recommendations are editorial judgments about the documented features, not laboratory rankings.