When comparing Fitbit Blaze vs Fitbit Flex, the Slant community recommends Fitbit Blaze for most people. In the question“What are the best fitness trackers that pair with iPhones?” Fitbit Blaze is ranked 3rd while Fitbit Flex is ranked 12th. The most important reason people chose Fitbit Blaze is:
The Fitbit Blaze fitness tracker is feature-rich and tracks steps, calories burned, distance traveled, active minutes, floors climbed, heart-rate, and sleep time.
Specs
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Pros
Pro Tracks your activity in a large variety of ways
The Fitbit Blaze fitness tracker is feature-rich and tracks steps, calories burned, distance traveled, active minutes, floors climbed, heart-rate, and sleep time.
Pro Very easy to read, even in bright sunlight
The Fitbit Blaze is a great option for outdoor use thanks to how easy it is to see the display even in bright sunlight.
The clear and bright display uses plenty of color for better clarity.
Pro Wide range of wrist straps available for a more personalized look
If you don't like the basic rubber wrist strap the comes with the tracker, you can change out the strap for more premium options.
There are many different styles available including leather, silicone, or stainless steel in a variety of colors.
Pro Long battery life for being so feature-rich
While it varies somewhat, many people have been reporting that the fitness tracker usually lasts 5 full days on a single charge.
In general, the more features a tracker has, the faster it will drain the battery. 4 or 5 days is an impressive charge compared to other trackers with similar features (continuous heart rate tracking for example).
Pro Interesting design
The Blaze has a techie look to it that some may find a nice change from the usual sporty-appearance of trackers.
It is fairly lightweight and the design isn't offensive, it's something you can wear every day.
Pro Replaceable wristband with lots of style options available
The fitness tracker itself is a separate part from the wristband that can be taken out and put in a different band. There is 10 wristband colors to choose from in the official store, and custom bands available from third-party vendors.
Pro Comprehensive reports of your daily activities
The fitness tracker offers stats such as distance traveled, steps taken, calories burned, weight changes, calories consumed from foods and drinks, restless and awake states of sleep, etc.
Pro Integrates with over 40 apps so you can get the info that's most important to you
The fitness tracker can be integrated with a variety of apps that together can offer more in-depth and complete overview of your health and fitness patterns.
Pro Visually displays your daily progress using LED lights
There are 5 LED lights that, after double-tapping the wristband, display progress towards a goal. Each light indicates 20% progress towards the goal and the tracker allows choosing between steps, calories or distance to display this way.
Pro Tracks weight goals
Fitbit Flex lets users create a meal plan and log their progress from the dashboard menu.
Pro 5-7 day battery
Fitbit Flex will last up to a week on a single charge.
Pro Real-time Bluetooth syncing
Flex constantly shares data over Bluetooth, meaning that the device doesn't need to be taken off in order for the data to sync to an iOS or Android device.
Pro Social layer can increase motivation
Information regarding goals and progress can be shared with friends, and users can even challenge each other with goals.
Pro Quick food and drink logging
Because of Fitbit's database of foods' nutritional information, food and drink logging is easy.
Pro Comfortable
The lightweight rubber band is very comfortable to wear.
Cons
Con Poor use of the large display
The fitness tracker's screen takes up a small amount of the front face. The glass bezels and casing take up most of the front.
Con Requires your smartphone for GPS tracking
The Blaze lacks a built-in GPS so it can't track the route of your runs on its own. It can, however, be paired with your smartphone to use its GPS and track the route that way.
Con Inconvenient to charge
To charge the Blaze fitness tracker, you need to remove the main module and lock it into its charger.
Con Oversensitive pedometer overestimates your step count
The fitness tracker's step counter often counts movement unrelated to walking or running as steps. It ends up reporting more movement than has actually happened.
Con Hard to get the tapping right to active LED display
The double tap to activate the LED display lights must be the appropriate pressure and timing in order for it to work correctly. This can be frustrating to some users.