Chess players first used separate watches. Later, they used one box with two linked clocks. Today, they can also use digital clocks and browser apps. The best choice is the clock that both players can read, set and press without doubt.
A mechanical clock has direct buttons and large dials. A digital or browser clock can add time after a move, hold time at the start of a turn and save settings. Check the exact modes instead of trusting a broad product label.
Both players should be able to read the screen from their seats. The clock should stay still when pressed. Its buttons should be easy to find by touch. A clear setup matters more than a long feature list.
Web Bluetooth can ask to connect to a low-power Bluetooth device. The player must approve the request. Connection alone is not enough: the page must also know the rules, or protocol, used by that clock model.
Neither type is always better. A mechanical clock is simple to press and read. A digital clock can handle added time, delay and more than one stage. Pick the type that fits the games you play.
No. The browser must support the feature, and the player must pick the device. The page must also know how that model shares button and timer data. Each model may use different rules.
Start with A short history of chess clocks, then use Mechanical vs digital chess clocks for the next practical question in this topic. Other topics sit one level up in the full chess clock guide library.
From separate sandglasses and mechanical flags to digital increment and browser-based timers.
Read guide →Compare feel, precision, time-control support, readability and tournament practicality.
Read guide →A non-affiliate checklist for displays, controls, presets, batteries and accessibility.
Read guide →Practical visual, motor, cognitive and screen-reader considerations for inclusive timed play.
Read guide →What Web Bluetooth can connect to, what it cannot do, and how ChessClock.now handles nearby play honestly.
Read guide →Open the browser clock for a game, then use the guides to compare hardware and connectivity needs.