Razer Nabu X Smartband – Black

This was purchased on July 2nd and received July 3rd (gotta love Prime shipping) I ignored the reviews saying that it had issues with the connection and that it stopped working after a while, mostly because I love Razer. But this was a big disappointment. Connected and worked fine for about 5 weeks, but then it started having issues with the connection. Now it is completely not working unless it is plugged into the charger. Tried to register it for the warranty on Razer's website and it asks for a product number that you cannot get unless you didn't throw away the packaging (which I did.) so I am SOL. Next time I'll just get a FitBit or maybe a cheap pedometer. Either one will work better than this in the long run.

The product is very easy to use and it is really cool. Easy no fuss interface, charging only takes me an hour, if anything an hour and a half. Always stays connected to my phone, I have never had any issues with it staying connected. Keep in mind the "Nabu X Utility" app must remain open in the background at all times. And the Bluetooth does not drain my battery at all. I am using a IPhone 6 Plus running I.O.S 8.3 with Bluetooth 4.0

I did some research on fitness bands prior to this purchase...that being said I didn't do enough research. This band refused to charge and when it did after some serious manipulation of the connection cable it would charge and within seconds of saying 100% I would disconnect and it would drop to 20% ish. The blue tooth snyc never worked, as I couldn't trust the reliability of the information because of the constant disconnect from the application on my smart phone. Simply put, don't go cheap, this is simply a product I cannot recommend to anyone and would stress to not waste your money. I'm in the process of returning it for a full refund. This is just my opinion so be gentle.

When this came out the product sold well and had a decent battery lifespan, my very first one lasted a week on a single charge. fast forward to now the company not only discontinued manufacturing them but refused to make good on there initial promise to create apps for the device for it and add features to it. again I have nothing against the original product when it came out, my issue is this attempt to sell a barely working version of what used to be a decent product. I charge the device and barely 10 PM the next day it's down from 100% to 42% in just one single day!!! its possible I got a faulty unit with a bad battery, nothing else is wrong with it. aside from the poor battery life, don't expect this fitness product to last more than 2 days.

Despite all of the bad reviews i came across i figured why not give it a try. Within the first 20 mins of use it stopped syncing. The usb charging cable pulled apart as soon as i tried to remove it from my laptop. Razer makes so many good products so was hopping for more. The apps available for this product are not anything to wrote home about. Overall if you're looking for a decent activity/sports band stick with buying one of the well known brands. Seems like Razer thru this thing together just because they wanted to see if they could pull it off. Nice try.

Honestly, the best thing I can say about it is that I keep forgetting I’m wearing it. It plays my phone notifications and tracks my steps, and one charge lasted me a full shift today. If you’re looking for simple and stylish with useful features, Razer nailed it.

So just to be clear the product is really cool, but it has stopped working about 2 months after I got it. I am in talks with the razer customer service, but they want Amazon to deal with the problem because I bought it through them. *****After the customer service************* I want to update this after talking with customer service I got a new band, just had to pay for shipping once I got the RMA number. The problem with this are two fold 1) There is a proprietary charging cable that connects to a USB port. I hate proprietary cables, but the first one I got was poorly made, the housing on the male USB was not secured. I had to remove the plastic then pull the cable out of the USB port. It wasn't a deal breaker but under there is never one cockroach theory...not a good sign. With the cable they recommend that you charge the device while you are working at your computer because of the second fault 2) it is super easy to damage it through overcharging. Once the battery gets damaged everything: data, notifications, charge life all fall into the toilet and in my case it was a race to see what would happen first - would I get past all the customer service barriers or would the smartband stop working completely. As far as the cascade of failures, the sleep track stopped working, then I noticed that a charge would last 4 days then 3 days, then it wouldn't really send me notifications for calls and texts, then the steps were all messed up. It simply became easier not to use it because all the data was questionable (which was a secondary purpose for me) and the primary of not being able to get haptic feedback on my wrist was absent. Overall I still like the idea of wearables, but I think I will pay a bit more to find something more robust. Also in full disclosure the second time the band failed I decided it was not worth the hassle to go through customer service.

It worked well, for about 24 hours. Then, it completely stopped working. No lights, no notifications, nothing. The app said that it still had good battery life and that it was connected, but there was no response from the device. I am in the process of returning the first one and getting a replacement. If that is better, I will edit my review. As for the first 24 hours, I liked what I paid for. If you consider how inexpensive it is ($50). you get a good deal from what you pay for. I wish you could customize it a bit more, but it is a new product, so I expect that those updates will come along down the road.

Brillant Watch as described , tracks my sleep and battery life is great

Scam Product. Razer is taking money from customers for a bricked product... The mandatory application for the Nabu X Smartband *no longer exists* on mobile app stores. Razer products have always been dubious; but an outright scam now puts this company on my permanent blacklist.

Buen producto au que ya no conecta con los nuevos Android,

It was defective I could never pair it to my phone and every time I did it would un pair immediately and have zero battery.

Unable to find nabucasa utility app