Fitbit makes the absolute best Fitness Devices and most user friendly Fitness App! Period!I have 5 years of Incredible Data that is so easy to read! I can easily analyze it and see over the years when and how I got in the best shape, when I gained weight, what my eating and sleeping patterns were, and so much more!The whole Fitbit Ecosystem is by far the best, most user friendly information that can be used!Update June 5 2022:The new Charge 5. Awesome. Look at the Color resolution.P.S. I'm an Exercise Physiologist and Personal Trainer of 24 Years. As Amazon can tell you, I've purchased every single Fitbit Watch, and even bought additional ones that I've purchased as gifts for my Clients, Family, Dad (twice), and a few great friends. I'm passionate about Fitbit, because it absolutely gives the most necessary Data that a Trainer needs to almost perfectly analyze what adjustments are needed within a Clients, my own ...., Exercise Program, Training, Nutrition, analysis of calories down to BMR, STEPS, PERORMANCE, and absolutely every Lifelong or even short term Fitness precise goals. Amazon can also tell you that I've also purchased The Galaxy Active 2, the beautiful Fossil Gen 3, and I've had a beautiful Apple Watch, and a newer High Tech Garmin. Im truly passionate about getting my Clients, myself, friends, etc... the very best and precise information, training, analysis, and giving them the most User Friendly App on the Market Ever. Now, if you want a Tracker or Smartwatch for the reasons of beauty, fancy, Hi-Tech, trendy, cool statistics and a Plethora of "other" clever, designer, visually great, Characteristics...., then there are other more aesthetic, Hi-Tech, feature packed watches that u can buy. But, all of those other watches including the beautiful Apple Watch, Fossil Gen 5, The $850 Titanium Garmin, that ALL have to be charged every single night, unless u want to "set" those watches to reduce all their great features that they Market. Did u know even the newest Apple Watch with all the features on, still has to be charged every single night, the Garmin, the awesome Galaxy Active 2, and in my opinion the most Aesthetically Appealing Fossil Gen 5 that has Google Assistant on it, a beautiful display, and even stores and plays music. Using any of those features on ALL THOSE OTHER BRAND WATCHES, make the Battery last less than 10 Hours at times...., if u happen to also take phone calls, texts, etc... MY POINT IS THAT EVERY SINGLE PHYSIOLOGIST AND TRAINER WILL TELL YOU HOW VITAL IT IS TO BE ABLE TO COMPLETELY WHERE UR WATCH ALL DAY AND "ABSOLUTELY" THROUGH THE NIGHT..., preferably for many days straight. Did u know ur still burning calories the whole night, ur resting heart rate can only be accurately calculated if ur able to wear the watch all night. Again, hopefully several days and nights non stop without having to charge it. There are absolutely vital statistics and analysis during the night that a truly great Trainer can ONLY actually show u how to achieve ur fitness goals with. Every single Beautiful new Smartwatch that I've either had or tried many times...,or I ask my clients to please show me on all their Fancy, Beautiful, Smartwaches..., an analysis of all the vital Exercise and Fitness stats that are needed to create a true Plan to accomplish all their Goals....,and they simply can't.So, if u want a Smartwatch or Tracker that is the most User Friendly, and that will actually help you and ur Trainer have the necessary info to accomplish all ur Fitness Goals, Fitbit and the Fitbit App are the absolute best. I still personally can view all my Stats from 6 Years ago, even after wearing 7 or 8 different Fitbit watches.And, by the way, I loved my Galaxy Active 2. And, as long as I shut off Text Notifications, the brightness of the Screen, absolutely never use Bixby Assistant, and reduce a few other options, it lasted for maybe almost 2 days.And, tell me...,how does anyone determine if they are in a Calorie Defect or Surplus every single day, if u have to charge the watch every night?? This Calorie equation and analysis, which needs the watch to truly stay on all day and night, preferably for many days in a row...is Precisely what every person needs if they want to accurately lose weight, lose body fat, increase weight, increase muscle, etc.... THIS SIMPLY CANT BE DONE BY ANY OF THE BEAUTIFUL, FANCY, SMARTWATCHES.And, all those great Companies claim that they can all get up to "full charge" within an hour. WELL, DOES EVERYONE HAVE JOBS OR OTHER LIFE RESPONSIBILITIES?? Gratefully, I can even make my own schedule. BUT, EVEN IF A BEAUTIFUL SMARTWATCH CAN BE CHARGED IN 1 HOUR..., HOW MANY PEOPLE ARE GOING TO ACTUALLY SIT BY THEIR WATCH FOR AN HOUR UNTIL ITS FULLY CHARGED AGAIN. NO ONE. People always have things to do. So, yes, these Beautiful Watches can charge within an hour or two, but not one person I know, including me (who can have an easier, open schedule)..., will ever have "nothing" to do, to be able to get their Watch back on in exactly and hour or two. I COULD DO IT WITH MY GALAXY AND FOSSIL FOR ABOUT A DAY. Then, things in Life would come up, and it ended up taking 2-3 hours before I got back to my watch to put it on. That lasted about 4-5 Days. After, that "Life Happens" all the time and it would end up being 5-7 hours before I got back to my Watch. Then 9-10 hours as something urgent came up while it was charging. On that day, I had to charge it all night. So I didn't record any vital stats for 18 hours that day. Same thing happened with all my Clients, family, friends, who all had the latest, highest tech watches. Then I would miss a day at a time.Bottom line.... There are so many Hi Tech features on many more beautiful Smartwaches and Trackers. BUT IF U ARE SERIOUS ABOUT EXERCISE, AND A LIFETIME PLAN OF HEALTH AND FITNESS.... THE FITBIT IS BY FAR THE MOST USEFUL TRACKER FOR THIS.Of course, in humble regards, a great Trainer can eventually teach you how to understand ur body, and it's needs so naturally, that it is very possible to lose or add weight without wearing any watch. But 95% of people aren't able to do this. As, they are probably Experts in other Fields.FITBIT IS THE BEST. And, this is unbiased, as I loved actually listening to music out loud without headphones or ear buds on my Fossil, as it has a Speaker. My Charge died in 3-5 hours.