![]() ![]() The problem is mitigated somewhat by the Fitbit companion app, which lets you specify which stat you see when you lift your wrist. Sometimes, I had to tap the screen multiple times to get the Alta HR to wake up, and usually a few more times to cycle between stats. Unfortunately, it’s too dim to read in direct sunlight, and isn’t very responsive. The Alta HR’s monochrome OLED screen isn’t touch-sensitive - instead, tap the screen to cycle through statistics screens, call and text message notifications, and activity reminders. That being said, there’s definitely room for improvement. It’s also a lot more comfortable to wear all day - I tended to forget I was wearing it. But unlike last year’s Alta, which used a prong closure to secure the tracker around your wrist, the HR’s band adopts an adjustable watch-like buckle that’s much easier to fasten. The Alta HR’s wristbands are interchangeable, with alternative options available in elastomer, leather, and metal. The company said it shrunk the internal tech by 25 percent to make room for the optical heart-rate monitor, and the smallest model – the unit we reviewed - measures a mere 0.61 inches (16mm) wide. It’s one of the thinnest, sleekest fitness trackers we’ve used.įitbit claims Alta HR is one of the smallest wearables on the market with continuous heart-rate tracking, and that seems likely - it’s tiny. While we wish the body was waterproof, and the display was a little easier to activate, we think the Alta HR is one of the best fitness trackers you can buy at its price point. We came away impressed by the device’s accuracy when tracking heart rate. That’s where the Alta HR, Fitbit’s newest tracker, comes in.įitbit’s Alta HR improves upon last year’s Alta with sleep-tracking and heart rate-monitoring features - all in a slim, compact frame. But even incumbents can’t afford to rest on their laurels. The wrist-worn wearables record your steps, calories, and other metrics to help you to lose your love handles - or at the very least, feel less guilty about the leftover pizza you had for breakfast.įitbit’s the undisputed king of these trackers, shipping 5.7 million devices in the second quarter of 2016 and capturing 25 percent of the global fitness market. Not much can be said about fitness trackers that hasn’t already been written. No manual fitness profiles or relaxation features These results suggest FBA-HR cannot replace EEG-based measurements of sleep and wake in the diagnostic assessment of suspected CDH, and that improvements in device performance are required prior to adoption in clinical or research settings.įitbit activity tracker hypersomnolence sleep sleepiness. Device performance did not differ appreciably among diagnostic subgroups. The device failed to detect any nocturnal SOREMPs. ![]() FBA-HR displayed significant overestimation of total sleep time (11.6 min), sleep efficiency (1.98%) and duration of deep sleep (18.2 min). ![]() ![]() FBA-HR-detected sleep-onset rapid eye movement periods (SOREMPs) were compared against PSG SOMREMPs. FBA-HR all sleep (AS), light sleep (LS PSG N1 + N2), deep sleep (DS PSG N3) and REMS classification was evaluated using epoch-by-epoch comparisons. FBA-HR sleep variable quantification was assessed using Bland-Altman analysis. Forty-nine patients (46 female mean age, 30.3 ± 9.84 years) underwent ad libitum PSG with concurrent use of the FBA-HR. This investigation aimed to determine the ability of a current, multi-sensor tracker, Fitbit Alta HR (FBA-HR), to quantify and classify sleep in patients with suspected CDH relative to polysomnography (PSG). Current multi-sensor activity trackers that integrate accelerometry and heart rate are purported to accurately quantify sleep time and REMS however, their utility in suspected CDH has not been established. Measuring sleep duration and early onset rapid eye movement sleep (REMS) is critical in the assessment of suspected central disorders of hypersomnolence (CDH). ![]()
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