Like anybody with a brain, of course I work out, in my case 3-4 times a week at my local gym. Recently I became interested in fitness monitoring devices and although I think the Apple watch covers it too. Fitbit seems to have attracted the major share of the business. I quickly narrowed my search down to the Fitbit Alta HR, because of its small size. The Alta's small size looks good on my wrist considering I'm petite, but it looks good on men too. I'm still learning its capabilities but the HR = heart rate monitor feature is what caught my interest. In combination with accelerometers it can capture a wealth of data from your body. I have no idea what other sensors there are, if any. But just from these two inputs many aspects of your physical activity can be calculated via algorithms. Of course HR heart rate is given, and is why the device is called the Alta HR. I presume Alta is marketing for "thin band." (Some devices have GPS for distance walked but I think the HR deduces that from accelerometers or just reports in units of steps. If steps you could calibrate a conversion for yourself.) The device tracks my heart rate (bpm) throughout the day and night. You wear it 24/7 except for perhaps 4 hours every 4-6 days for charging, and of course when you bathe. It is interesting to know my heart rate at any given time by just tapping the face of the watch twice quickly, bringing up the LED display showing time of day and heart rate, and a symbol categorizing your current bpm, although I have not learned yet exactly what the different categories mean, something about burning calories. My HR tells me I have excellent heart health, which of course you would expect for a healthy person my age, particularly considering my workout regimen. And that brings up the other interesting part that when I am at the gym my actual current heart rate is quite interesting. The treadmill has built-in HR and I've been somewhat concerned that the two don't agree, but at worst the HR may be giving me relative readings. On the other hand I can mode the watch (more taps while display is active) and see the heart symbol actually throbbing as I feel my heart beat, and they seem to be in synchrony. The sleep monitor is just simply amazing! I have attached a picture showing a recent night's sleep. You can see me falling asleep and then as my night progresses me going through light sleep, deep sleep, REM sleep... The app (you run an app on your cell, tablet or PC) explains that each of the stages are important but of course that is common knowledge. Wow I sure like that REM sleep! LOL! Hey... Wait! What? I'm sleeping with the whole friggin' forum??? LOLOL! The device has other features I have not explored yet, such as reminders to get up and walk around a few minutes (important for me since I write corporate apps and get engrossed in my computer, often in a software trance for hours), and reminds you to drink water periodically. I always have water next to me on my desk as I work but I forget to sip. Of course everybody knows it's important to have water continually flowing through your system (and out to the ocean, river, whatever) to help your kidneys do their job. I'll start using these features and others as I integrate the HR into my life. One thing I don't know about is the calorie input feature, it's a PITA to translate a plate of food into calories. Restaurants have that on their menus but I mostly cook at home from fresh ingredients, and except for the main serving (beef, chicken, shrimp) where I use a scale, the rest of the ingredients are just by intuition. And yes you should have a scale and at least measure the main ingredient to standardize your meal size. Let's get on to shoppiing, woo hoo! When the going gets tough the tough go shopping! LOL! And I'm tough all of the time! You can get Fitbit at Amazon although I bought mine at Bed, Bath and Beyond. I got mine during the Black Friday - Cyber Monday period, list price $150 for $100. You should time your purchase for sales unless you have money to spare. (This girl spends her spare money on the stock market!) The first thing you do when you get it is throw away the goddamned fugly band! My fuchsia band didn't look too bad online (I really wanted pink) but OMFG it was just friggin' gross when I got it! I fixed that quickly by buying a metal aftermarket replacement. Bands snap in and out quickly and easily. I'm intending to buy a few more bands so that I can properly accessorize! I haven't been able to find a band of real gold yet, and if you know me at all you know my favorite color is gold! Woo hoo! I have attached pics of my HR (with it's fugly band), the band I actually wear, and a recent display of a night's sleep categorized into the various stages. (You should know that if you make any jokes about me sleeping with the forum, that I hit pretty hard for a grrl! ) This is my first use of images on this forum so let's see how it comes out. To sum it up this product is a great accessory that helps you achieve physical fitness by giving your real data on your fitness related activities. Then you can plan your physical regimen accordingly. At holiday prices I think it's a fantastic deal, and even a good deal when the online sellers aren't trying to whip people into a shopping froth! Note that the Alta HR is just one of a line of perhaps 8-10 similar devices, and you can visit fitbit.com to compare the various products; perhaps you may prefer a different model. So tell me what you think!