Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"
Best for
Best large-ball / finger-operated
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$90.35
Updated Jun 27, 2026 · 1 min read

The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
The Kensington Expert is the long-standing pick for shoppers who want a large, centered ball operated with the fingers rather than the thumb, paired with a scroll ring and a detachable wrist rest. Verified-purchase reviewers give it a 4.2 average across more than 5,300 ratings, a sizable pool that points to a durable, established design with a more polarizing fit than the smaller thumb trackballs. No independent lab or specialist-community signals were attached to this specific listing in our data, so its standing here rests on that broad retailer rating and its clearly differentiated finger-operated form factor.
What reviewers liked
- Large centered ball suits finger operation and precision-oriented work
- Includes a scroll ring and detachable wrist rest
- Very large, long-running review base (~5,300 ratings) signals an established design
- Ambidextrous layout works for left- or right-handed users
Where it falls short
- 4.2 Amazon average is the lowest among the picks here
- Steeper learning curve than thumb-operated trackballs, per general category consensus
- No expert or specialist-community signals attached to this listing in our data
- Premium ~$90 price with an older sensor design
Embed our score
Sell this product? Show off the rank.
Free badge for the brand, retailer, or anyone covering this product. Copy the snippet and paste it anywhere HTML works. Updates automatically when the ranking changes.
Includes a credit link back to this page. No tracking; no JavaScript.
The Kensington Expert is the long-standing pick for shoppers who want a large, centered ball operated with the fingers rather than the thumb, paired with a scroll ring and a detachable wrist rest. Verified-purchase reviewers give it a 4.2 average across more than 5,300 ratings, a sizable pool that points to a durable, established design with a more polarizing fit than the smaller thumb trackballs. No independent lab or specialist-community signals were attached to this specific listing in our data, so its standing here rests on that broad retailer rating and its clearly differentiated finger-operated form factor.
- Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease
- Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design
- Customizable 4-button design, scroll speed and cursor speed via *KensingtonKonnect software. *Windows ARM-based computers are currently not supported
- Connects wirelessly via built-in Bluetooth LE or with the USB dongle using 2.4Ghz wireless; Auto-sleep helps conserve battery life; Bluetooth connectivity works best for PC Windows 8.1 or later and Mac OS X 10.8 or later; USB dongle connectivity is recommended for Windows 7 or later
- Power saving mode puts mouse to sleep when not in use; power settings can be updated in the KensingtonWorks software
- Compatible with Windows, macOS (10.14 and later), and Chrome (OS 44 and later); 3 year coverage and lifetime technical support
If the consensus convinced you
Check current price on Amazon
Pricing and availability change frequently. Tap through to confirm before buying.

