The 9 Best Crossfit Clocks

Coaches who keep losing the remote should look at the GymNext Flex Timer Home Edition, because a free phone app runs it. Build a workout once, save it and start it from across the room; home-gym reviewers single out the app as the reason to buy it. It covers Tabata, EMOM, rounds and a stopwatch, and it can link several clocks so a whole gym counts together. It has to stay plugged in, and the power cord is short.

For a simple wall clock that knows the common CrossFit formats out of the box, the Synergee Medium Interval Timer has one-touch Tabata and EMOM, plus count up, count down and custom intervals. During an EMOM it beeps in the last seconds of each minute before the next set. It plugs into the wall and runs from a remote. Most units work well, but some arrive dead or fail early, and Synergee covers it with a one-year warranty.

The LUCORB Gym Timer adds something many low-cost wall clocks lack: a strip of lights down one side that drains as each work or rest block runs out, so you can see how much is left at a glance. It shows the round number too, dims itself in a dark room and saves nine of your own workouts. It runs off a USB wall plug that must stay connected, and LUCORB lists no warranty.

A strong magnet on the back lets the Acedeck G02 stick to a squat rack or steel beam, so the clock goes where you train instead of on one wall. It recharges from a USB cable and runs about 40 hours between charges, which means a charge or two a month for many home lifters. A small remote comes in the box. The digits are small, so it suits one person at a rack, not a class.

Big boxes and long garages need digits you can read from the back row, and that's the job of the Synergee Large Interval Timer. It runs Tabata, EMOM, count up, count down and custom intervals from a remote that reaches across a big room. It plugs into the wall, and its weight means it belongs on studs or proper anchors, not bare drywall. That's serious money for a clock run only by remote, and the remote needs its own batteries.

Built for a full gym floor, the GymNext Flex Timer Gym Edition takes GymNext's phone-run clock and gives it much taller digits a room full of athletes can read. Coaches can start a workout from a phone or a smartwatch, show heart rates on screen and sync several clocks around one floor. It can also lower your music when the timer calls the next round. It needs an outlet nearby, and it's a big spend for a garage.

Clip the Gymboss Plus to a waistband and it buzzes and beeps through your intervals, which makes it handy for runs, outdoor sessions and travel where no wall clock exists. It times one or two repeating intervals, and this version adds more water resistance and a louder beep than the basic Gymboss. It takes a AAA battery that isn't included. The screen is tiny, so it's a personal timer, and some units wear out early.

An aluminum case sets the Ledgital Gym Timer apart from plastic wall clocks, and its tall red digits stay sharp from across a garage. Shortcut keys on the remote jump straight to Tabata, Fight Gone Bad or your own routines, and it stores up to 10 of those. Between sessions it works as a regular wall clock. It's made for indoor use only, there's little independent feedback on it, and stock was running low when we checked.

Put a real interval clock on the wall for little money with the BTBSIGN CFT023. It has presets for Tabata and Fight Gone Bad, holds up to 10 custom workouts and doubles as a time-of-day clock. The digits are small, so it fits a home gym or a spot right in front of you, not a big room. It works only from its remote and has to stay plugged in, and some units quit within weeks.