SUMMARYI've been wearing Motiv non-stop for 6 months now. At this point it has become a part of how I think about my day: every morning I check how well I've slept, every evening I check how active I was. This is by far the most unobtrusive and convenient tracker I've owned. It helped me to become more active and pushed me to fix my sleep.ORDERING PROCESS AND SIZINGThe process is a little unusual, but very straightforward. Once you've ordered your ring on Amazon, what you get is actually not the device itself, but a sizing kit. The kit contains 7 "sizers", exact plastic renderings of the Motiv, in different sizes, instructions and a secret code. You pick a fitting size, go on their website, create an account, type in the code, printed on the sizing kit box, select the ring size you want and viola - get your device shipped to you.You would do well choosing one of the fingers (except a thumb, and probably not a pinky) of your non-dominant hand. I went with my left hand middle finger, for several obvious reasons. Once you've picked a finger you want to wear the ring on, you want to wear a replica for a day or two. The simple reasoning is that fingers change their shape slightly as we go through our day, do sports, drink and eat, sleep etc. Motiv needs to fit snugly, but you don't want to feel discomfort either, so trying a several sizes for a day or two actually makes a lot of sense. After I've set my mind on the right size, I went ahead and ordered the actual device. Got it 3 days later.UNBOXINGThe box the ring came in has a premium, smooth design. It feels like they went with an Apple-like feel for the package (who doesn't these days?). The ring is affixed on a small pedestal in the middle, attracting all the attention right away. I wanted to put it on immediately - and I did. But, as I was prompted by the software a little later, the ring needs to be charged first.RING DESIGNThe ring is slightly larger than your old-style non-decorated male wedding ring, but is surprisingly light. It feels almost hollow when you hold it on the palm your hand. It weighs just 2.5 grams (0.088 oz), I guess that's what you get when you use titanium! Inside, the ring has a couple of magnetic brass-colored contacts - that where the charger latches on. Outside, Motiv is all metal, except for a tiny plastic window - that's where the antennas and the LED indicator go.It is amazing how much battery the designers were able to fit into this tiny body! Motiv lasts for 3 days initially, with the battery life shortening a little after some usage. After 6 months of everyday use mine still lasts about 2.5 days.After 6 months the ring got scratched a little here and there. But, if anything, I like a worn look even better. It's like a pair of well-worn boots, has character.COMFORTAfter about a week of wearing Motiv, I stopped noticing that I'm wearing it at all. Sizing here seems to be the key: fingers grow and shrink slightly as you go through your day, so if you pick a tighter size it might prove less unobtrusive to wear long term. I definitely haven't owned a more comfortable activity tracker and basically never take it off now, except for charging and when I'm in the gym. Doing weights in the gym or carrying heavy items are the only times when I find issues with having Motiv on: metal of the barbell damages the coating and the ring presses uncomfortably into the finger under load.I was worried, that the charging contacts will cause discomfort, but in reality I don’t even feel they are there.SOFTWAREI've only used Motiv's Android app so far. It has evolved quite a bit in the 4 month I've been using Motiv, going from pretty basic to quite full featured, including a two factor authentication feature, that I use quite a bit and quite happy about. The performance of the app on my (somewhat dated) 1st generation Google Pixel is not superb, but decent. Occasionally, the ring stops syncing with the phone; disabling and re-enabling Bluetooth, rebooting the phone or restarting the app background thread fixes it.Motiv syncs with your phone every hour or so automatically. Rotating the ring in one direction 3 times forces a synchronization process. The indicator on the ring is flashing blue during the sync process.2-FACTOR AUTHMotiv can act as a 2-factor authentication token (e.g. for your Gmail account). All you need to do is go through a setup flow on your phone and, when 2-factor is needed, you just rotate the ring back and forth several times. Works pretty reliable and is really convenient.ACTIVITY TRACKINGAt the point of the review, the Motiv app tracks:- number of steps taken through the day- number of active minutes- length and quality of of sleepI personally find 2 use cases most useful: automatic tracking of activity periods and sleep tracking.Motiv starts recording your heart rate immediately after you start moving actively. Let’s say you go for a run. After you are done, the Motiv app presents you with an automatic record of how long your workout was and what was your heart doing throughout the entire exercise. I find it very convenient, that the periods of active walks are recorded that way to: I was able to calibrate how long it takes me to walk to a grocery store, to my office, to my gym etc. Knowing how long those walks take also helps me to push a little harder: it feels like a little competition with myself.Sleep tracking is the crown jewel for me. The ring is comfortable enough, that it doesn't bother me when I'm sleeping. That means that every morning I can check how long I have actually slept and how was my sleep quality during the night. And boy oh boy I was surprised: I thought that I slept 1-2 hours longer than I actually did! And I don't even remember some of the wake-ups Motiv registers! Thanks to all that data, I was able to correct some of my sleep issues (hint: you might need a new mattress). I now go to bed earlier, wake up with the first rays of sunlight and am full of energy in the morning.In addition, the ring monitors your resting heart rate when you sleep. RHR has been shown to correlate strongly with how fit an individual is. High RHR is also a sign of high level of stress or, potentially, a heart issue. One more valuable metric to track!COMPARISON WITH OTHER TRACKER TYPESI do own a Fitbit, a Samsung smartwatch and do activity monitoring on my Android smartphone. The most accurate seems to be the smartwatch, but Motiv is not far behind. Comfort-wise though, Motiv blows everything out of the water. For instance, I can't imagine sleeping in either wearing my watch or the Fitbit, while doing that wearing the ring is not a problem at all.