Qalo SL-1 Review Calls $199.95 Band Barebones Despite Flagship Price

The SL-1 is designed to work within Qalo's ecosystem. If a user owns a Qalo smart ring, the SL-1 is complimentary with the rest of the ecosystem, so data from a ring worn during the day and a band worn on the wrist or bicep during a workout will aggregate in the same place. Some corners of the internet have said Qalo's rings are rebranded hardware from J-Style, a white-label wearables manufacturer. A Qalo representative told Engadget that the SL-1 is "built around QALO's own software, data and design."

Engadget described the hardware as a screenless fitness tracker that looks like someone described a Whoop over the phone. It is a little longer than a Whoop MG and has a more pronounced bend in its chassis, although that did not appear to affect how it sat on the reviewer's wrist. The silicone strap attaches to itself magnetically. Engadget said the magnetic strap looks and sounds like a cool idea, but it can get easily dislodged if a sleeve slides along at the wrong angle.

Qalo says the water-resistant band lasts for 12 days on a single charge and monitors activity, sleep, heart rate, SpO2, HRV, stress, temperature and menstrual cycle tracking. It ships with a magnetic USB-C charging cradle, which Engadget described as heavy for what it is.

In use, the SL-1 collects a trove of data but produces a Q Score, a single 1-100 metric that tells users how well they are looking after themselves and how much fuel is in their tank. The score is joined by three other metrics: Sleep, Movement and Vitality. Vitality aggregates resting heart rate, resting HRV, blood oxygenation level and skin temperature. Opening the app each morning gives a pop-up with the previous day's Q Score. Enough sleep and exercise can produce a high figure, and several days of good habits can create a streak.

Once the pop-up is dismissed, the home screen provides live updates on Q Score throughout the day. Engadget said the conclusions exist in a vacuum and are written in past tense. A morning check might say the score is low because the user did not log a workout and did not walk enough. Engadget said this is not a big deal unless a user is sensitive to being demoralized by a fitness wearable, but it is a sign the system does little beyond aggregating the data it is given and ignores broader context.

Engadget also criticized the lack of automatic workout detection, at least for basics, which it said should be a standard feature for any fitness band. The SL-1 cannot identify when the reviewer was out for a walk and log that separately, which the review said was vexing, especially given the likelihood of forgetting to activate a workout. Engadget said the omission may be easier to accept if a product like Garmin's Cirqa could not do this for the same amount of money. Starting an activity provides details on heart rate zones, maximum and average heart rate, steps and calories burned, and live heart rate and zone appear as a live activity on the phone's lock screen.