

❤️ Track smarter, live better — your fitness edge in a sleek band! 🔥
The Fitbit Alta HR is a slim, stylish fitness tracker featuring continuous heart rate monitoring, automatic sleep stage tracking, and up to 7 days of battery life. Compatible with both iOS and Android devices, it helps professionals optimize workouts, monitor health trends, and stay connected—all in a lightweight, waterproof design.

















| ASIN | B06X6K3HTS |
| Additional Features | Accelerometer, Activity Tracker, notifications |
| Battery Average Life | 7 days |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #357,060 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #942 in Activity & Fitness Trackers #2,422 in Electronics & Gadgets |
| Brand | Fitbit |
| Built-In Media | Accessories (specific not mentioned) |
| Closure Type | Buckle |
| Color | Fuchsia |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphones : smartphones|smart phones|android phones |
| Compatible Phone Models | Compatible with iOS and Android devices. |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.3 out of 5 stars 10,519 Reviews |
| Display Type | OLED |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 00816137024761 |
| Human Interface Input | Unknown |
| Item Dimensions | 1.61 x 0.61 x 1.3 inches |
| Item Weight | 22.68 g |
| Manufacturer | Fitbit Inc |
| Material | Oled |
| Metrics Measured | Heart Rate, Sleep Duration |
| Model Number | FB408SPMS |
| Operating System | windows 10 |
| Screen Size | 5.5 inches |
| Shape | Rectangular |
| Sport Type | Fitness |
| Style Name | Modern |
| Supported Application | Heart Rate Monitor, Reminders, Sleep Monitor |
| UPC | 816137024761 |
| Unit Count | 1 Count |
| Water Resistance Level | Water Repellent |
| Wearable Computer Type | Activity Tracker |
| Wireless Compability | Bluetooth |
T**8
Glad to move from Charge HR to Alta HR
I had a Charge HR for about a year. Happily switched to the Alta HR when it came out. My wrist is 6.5” and I got a large. I wear it on the second smallest hole (with the Charge HR I’d worn it on the third smallest). I like the large because it can fit around my ankle if I want, and the extra strap fits across most of my under-wrist which I think looks good. STEPS: it does this just as well as the Charge HR HEART RATE: Does this just as well as the Charge HR. I run a few days a week and it gets the same readings. STAIRS: Doesn’t have this function, but I found it flaky in Charge HR and always got more stairs than I’d actually climbed for the day, so I don’t miss it. BATTERY: I had it set with “All-Day Sync” on and "Always Connected" off and the battery has lasted about 8 days. A little after the 6 day mark I started getting low battery warnings (I guess they start happening at 25%). I started getting nervous it would finally give out at the 8 day mark so I put it on the charger. I tried it with “Always Connected” on next and it lasted almost the same. I got the low battery warning earlier on the 6th day. By the 7th day I decided it was close enough and started charging again, so I'm not sure exactly how long it will take, but at least a week. ALARM: I like this better than Charge HR. The alarm goes and buzzes about four times. If you don’t do anything it stops and snoozes and goes again 9 minutes later. You have to tap it twice (or more, I usually bang on it a few times) to turn it off. Otherwise it just keeps automatically snoozing. I like that if I’ve decided I want to sleep a little longer I don’t have to do anything. SLEEP TRACKING: when set on “normal” was about the same as Charge HR. I tried it on “sensitive” for a few nights and I got big wide bars of “restless” and the tracker only counted the non-restless times as sleep, so even though I was sleeping for 6 hours, it only counted 2 hours as sleeping. I thought that was weird so I’ve had it set to “normal” since. Maybe this reading would be useful to someone, but I found it confusing. Five days after getting my Alta HR it started tracking “sleep stages”. This is cool, I like getting to see what stages I got at night. If you click on the chart it walks you through what the different stages are and what percentage of your sleep they made up. HOURLY ACTIVITY: It warns you ten minutes before the next hour if you haven’t had your 250 steps yet. I like this, I don’t always care to accomplish this throughout the day, but on the days that I do I used to get frustrated if I lost track of time at work and missed an hour since there’s no way to go back and get steps in so you just ruined getting 100%. I’m glad Alta reminds me. Sometimes instead of just walking around I stand up and shadow box - the punching counts as steps and my arms and torso get a workout and I get the elevated heart rate and I can get to 250 quicker. EXERCISE TRACKING: It can tell when I’m running, although like Charge HR it won’t know distances, just steps, heart rate, and calories. It doesn’t have the side button to start an exercise timer, but I never used that in the Charge so I don’t miss it. I have two other apps I use to track my runs, so I don’t care that much about how detailed the Fitbit tracks them. Although I did recently discover the fitbit phone app can track my runs if I start it at the beginning of the run (on the exercise screen click the stopwatch and go to the tracking tab: you can select the activity then click the play button. If it’s a run it uses the phone’s GPS to map the run). CALL/TEXT ALERT: I like getting the little buzz to let me know to check my phone. It displays a little of the text message, but not much. Which is fine, it’s usually enough to give me an idea of whether it’s something important or not.
F**7
A great Fitbit
I enjoy my Alta but I do have a couple dislikes. The battery does not last a week. I have to charge every 3-4 days. While this doesn’t bother me, I was expecting it to last longer. The light is ridiculously bright at night and for whatever reason that is the only time it comes on when I move my wrist. It doesn’t want to work during the day when I need it to but come 2 am and I’m rolling over it’s like a flashlight. I also have to tap it ridiculously hard when I do want to check something. The sleep tracking works great for the most part and I love seeing my patterns and shifts throughout my monthly cycle. Occasionally it doesn’t work and there’s no better explanation than ‘oops sleep tracking was unavailable’. I am a female so I have monthly menstrual cycles. I can keep track of my symptoms and I enjoy that. There are two issues I have with this function. One: the symptoms are lacking. There are a wide variety of symptoms missing. Two: when you log something on the calendar block it always has the same black dot on the calendar and then the symptoms below. For a quick glance it would be really nice if the icons were seen on the calendar and not just a black dot. That way you can look back and immediately identify what you have as a common symptom three days before instead of having to check every single month three days before. When you look at the calendar it wouldn’t be a slew of black dots either. You’d be able to immediately tell instead of having to push on every single day to get specifics. I really like the slim band. I do not like guaky watches. I would recommend this Fitbit as I really do enjoy mine. One of my favorite things about this Fitbit is the silent alarm. It wakes me up and also has the options to do silent reminders. I absolutely love that. The Fitbit app that accompanies the Fitbit is easy to understand, navigate, and utilize. I have no complaints other than the monthly cycle tracking. As far as accuracy, my periods are extremely regular so the app is right every month when I am going to start. For someone with irregular periods I’m not sure how accurate it would be. I love my Fitbit and I would buy it again. I would recommend it as it is a very good tool. If you do not want a ‘smart’ watch this is perfect. I think the smart watches are a bit much myself which is why I went with this product. I have had mine for four months now and I absolutely recommend it because sometimes I even use it as a flashlight at 2 am. :)
M**E
Excellent product!!
I had a Charge HR before this and was happy with it. When this new Alta HR came out I knew I wanted to upgrade. I don't usually go for the newest, latest, greatest model of anything but I felt like this would be worth it and it was. I love the color and the style of the screen. The size works for me but I keep it on the second hold in on the band so I could've gone with the small and it would have been fine. I bought a large because that's what I had before. I really like getting a glimpse of my text messages on the screen. The charge hr didn't have that and it's a real time saver when I can't access my phone and I want to know if the text was really important or not. I don't really miss the button on the side like the Charge HR has as much as I thought I might. I wasn't using it much anymore on my workouts anyway so I could get a more accurate picture of what my body was really doing. I have had a problem with it not recording my runs sometimes but that happened with the Charge HR as well so maybe it's a general Fitbit software problem. I love the fact that the band is interchangeable. My old one wasn't like that. I bought a rose gold leather band to dress it up sometimes. Easy to change out. I clean it from time to time with Aquanil. I use a pipe cleaner to get the holes clean. I like that the time and date pop on screen when you flick your wrist towards you. My other one did that and I was happy when this had that feature too. I find the display bright enough most of the time. I look at my fitbit app more than the actual fitbit itself unless I want to know the time or date. I've gotten it wet without any issues. Same with my Charge HR. I actually wore that in the pool once on accident and dried it off quick when I realized it. No problems whatsoever. This is a high quality product. Glad they had this in fuchsia. My charge hr is purple and both of these are really nice colors. They aren't super bright and go with everything just fine. I bought the screen protectors from IQ Shield and just left a review about how mediocre they are. I really felt like I needed to protect this larger screen and they do the job. You just use up half the package putting them on wrong because they don't provide instructions. I lost 20 lbs. with the help of my Charge HR last year and kept it off! I find it really helps me keep track of my calories and exercise. Very worth it!!!
F**5
An inexpensive way to get into tracking your fitness/sleeping behavior
What I wanted.... needed... was something to help me better understand how I was sleeping. I've had troubles for about 7-years now. I've been on various medications to help me fall asleep (Ambien), or stay asleep (not Ambien). I don't know why my troubles started, but they were pretty serious. Now things are much better, but I remain medicated each and every night so that I might sleep. I'm afraid to not take the meds in fear I won't sleep, which means I won't be heading to work, which one must do. So I began searching for the least expensive route for sleep monitoring and settled upon this version of the Fitbit. I've had it for almost a year now and can report it does exactly what I need. Beyond all the other things it can monitor, the sleeping data has been the most helpful. I can only assume it is accurate/reasonably accurate, but if it is then it strongly suggests I'm sleeping very much like most men in my age bracket. Granted, I'm sleeping like them with medication in my system, but at least now I can see that I'm not missing out on sleep that my peers are getting. Because they aren't either! I'm certain if I were interested in monitoring the other things this device can do, it would be helpful there as well. It's small, lightweight, unobtrusive. The syncing software and such is really better than I expected. The quality of the device is good, but let's not kid ourselves: it's a bunch of plastic and rubber. Longevity probably isn't in it's game plan, and this makes sense to a certain degree. As technology moves forward I'm sure they can make newer versions that are lighter, have better battery life (this one is pretty good), and monitor more things and do so more accurately. That's the march of progress. But I have found this unit to be more than adequate for my needs and feel it was a very reasonable price-point. Certainly wearables such as the Apple Watch can do so, so much more, but they also start at much higher price points.
T**T
Extremely happy with Fitbit Alta HR!!!
For someone who has never owned a Fitbit before I have to say that I think I found my new love!!! I researched ALL of the fitbits on Amazon and read tons and tons of reviews! The Alta HR seems to have everything I was looking for, except that it is not waterproofed. That part is no big deal because I don't see the need to wear it in the shower. That is the ideal time to charge it! Anyway, I have found it so fascinating to see my sleep patterns. I had no clue how much deep sleep I was getting. Obviously, I get much more on the weekends! I was a little surprised that some nights I am only getting around 30 minutes of deep sleep. I also like it when I reach my daily steps (10,000) and I feel the vibration on my fitbit. I look down and see the little fireworks of congratulations! Makes me work harder each day to get my steps in. The other day it said that I was an over achiever since I was over 12,000 on a regular day. Ha! I love it! I also like that it reminds me to get up and move if I've been sitting too long. I was at a workshop the other day and had to sit. I think my fitbit was having a fit that I wasn't moving, LOL!! One small thing that throws my fitbit off is if I'm sitting and watching a movie or television in the evening. It thinks I have gone to bed. The minutes are added to my daily sleep time. It has only happened twice in the few weeks that I have owned my fitbit, so I just delete that record before I go to bed. No big deal!! I do like the slimness of the Alta HR. I also purchased a nice dressy sliver band to change it out on occasion, but so far I have really liked the black band. It is really comfortable. I have to say that the Fitbit Alta HR is one of the best purchases I have made in a very long time!!! :)
S**M
Google Health Ruined a Great Fitbit
I was genuinely happy with my Fitbit Alta HR for years — accurate sleep tracking, reliable vitals, and consistent performance. Then Google took over, and things went downhill fast. The Google Health app misses readings and skips recordings on a daily basis. I tried every textbook remedy: restarting my iPhone, deleting and reinstalling the app, and everything in between. Nothing worked. On any given day, the app populates less than half of my vitals. The app itself helpfully warns that "all responses may contain mistakes" and that it is not intended for medical advice. At this point, that disclaimer says it all — this has become a gimmick for personal amusement, not a reliable health tool. The Fitbit hardware still feels solid. The Google software is what fails it. I'm done paying for this level of performance. Oura, here I come.
M**.
Everything I wanted and more
I'm so glad I made this purchase. I initially only bought it because I was curious about the quality of my sleep. The sleep tracker hasn't performed 100%, but I'd grade it a solid 95%. (Examples of problems: One day it said I fell asleep at exactly 5:00 AM, but I know I was asleep well before 4:00. Also, it doesn't always track my naps. It doesn't give detail for naps under 3 hours, and that's fine, but sometimes it doesn't even show that I was asleep Once I also noticed that it said I fell asleep just a few minutes into a program, but I remember watching at least the first 10-15 minutes of the show before I dozed off). I wasn't really interested in counting steps, but the first time I actually got to 10,000 and saw the fireworks on the display, it was really encouraging. At first I found the hourly reminders to move to be annoying and refused to play along, but it's fun to earn a star for the day, so I make the effort to get in my 250 steps nine hours a day. I chose the Alta HR because it was narrow and unobtrusive. I like the style a lot. I couldn't get used to the default time format (vertical), but that's easy to change. I switched to a horizontal format and I like it much better. There are still many features that I haven't used yet and I look forward to discovering them in the coming months.
M**Y
Awkward fit on wrist; not recommended if you like tracking your workouts
I thought I wanted a slimmer, smaller fitbit after having a Charge HR for a year or so. The Charge HR was feeling pretty bulky on my arm. The Alta HR, while slimmer, still feels pretty bulky because of the longer display screen. Because the hardware is longer, the band bends at an awkward place on my wrist and doesn't ever rest quite comfortably on my arm. It make it difficult to find the right band tightness; it's either too tight and won't read my HR, or it's too big and falls too far down my forearm to be a "bracelet' anymore. I do like the interchangeable band. That feature is very easy; I've already replaced my band with a black band for much cheaper than the difference between Fitbit's fuschia HR & black HR. I thought I could manage without the button to track workouts, but I was wrong. If you are very active and use that regularly, I would not recommend this version. It's not very accurate at automatic tracking, so I have to be mindful of when my workouts begin and end so I can edit the auto track results. When I'm doing something with a constantly raised HR like elliptical or running, it gets most of the workout. However if you do any sort of combo workout like cardio pilates, bodyweight exercises, etc, in which your HR is varied, you'll find it does not usually pick those up because of the limited categories of tracking in the fitbit app. I should also note that it does not track stairs, but if you were tracking stairs in the app w/ a previous fitbit, the app will still display stairs when you link the Alta. It would be nice if they could find a way to remove stairs from the app when you link this. I was very confused for the first few days why I had zero stairs every day. Bottom line: if you are just in it for step tracking, it's a fine band. It does the trick. If you are an active person who wants to track your workouts (calories burned, time, etc), I would recommend going for the Charge HR 2 or another band which has manual control over tracking.
S**T
Usos de Fitbit
Te ayuda a mantener un registro del movimiento que tiene al día, el agua que consumes, tus ciclos de sueño, si lo sincronizas con tu celular lee notificaciones que tengas a través de la pantalla del fitbit, parte puedes programarlo para que cierto tiempo te notifique que debes caminar o tomar agua
K**C
A stylish and perfectly fine fitness tracker for the rest of us.
The Fitbit Alta HR is the perfect fitness tracker for the aspiring enthusiast. It has all the essential activity tracking bits in place that should satisfy the fitness curious (but probably not the obsessed). I believe step/exercise tracking, sleep and heart-rate monitoring should be the bare minimum a fitness tracker should be offering in today's age and Alta HR does that very well. It's exercise monitoring may be not perfect (it tries to detect it automatically and so isn't 100% perfect) and the step tracking may not be accurate for the hard-core (it just fine for my 20 min run though). The real time heart monitoring is for the curious (interesting to observe how the heart rate goes up during driving, waiting for interviews, doctors appointment, meeting a girlfriend etc) but the rest heart rate measurement really ties in to your fitness (visible in the app). The sleep monitoring is a fantastic insight into your nightly proclivity as it measures deep sleep, light sleep and REM (dreaming) phases. Lastly, the Fitbit app ties in all the above things into a cohesive package that tries to give you a better holistic insight into your health regimen. All in all the Fitbit Alta HR is greater than the sum of its parts. If you're just getting started on the fitness thing but don't want to go overboard right away, this is the perfect stepping stone. Sure, it's a bit more expensive than the ones from Huawei and Mi but arguably the Fitbit Alta HR is more stylish, less obtrusive, has better social integration (invite your other Fitbit buddies for challenges etc), has a more polished app, and is admittedly a better fit (pun unintended) for the brand conscious.
L**S
Highly recommend.
I started out long ago with a classic Flex. Fell prey to its failed strap design and lost my tracker. I replaced it with a Charge 2, and found the tracker to be really accurate. Now I’ve moved on to the Alta HR and it’s my absolute favourite. In terms of performance it’s not much difference than the Charge 2 but I love Alta HR’s sleeker looks. It also feels a little more comfortable on my wrist. I debated whether I should pay extra for the gunmetal, and then decided to go for it, because I do wear it everyday, all the time. The best part: I bought it for INR 11,999 in a lighting sale on Amazon, which incidentally is the same price you would get it for in the US.
A**H
This is not my first FitBit
Own several and absolutely love them . This one fits in great being all black which is a nice feature and heart rate monitor is great!
P**N
Faulty
The screen goes all blurry in the sun and cannot be read. The plastic band that holds the overlap band down broke off. The watch also falls off my wrist easily as one of the bands doesn’t fasten securely.
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