Jawbone UP2 is the newest wristband based on the previous model UP24. Since that time, Jawbone has consolidated its nomenclature and new models are called UP2, UP3, and UP4. Latest UP2 band has all the features of its predecessor U24. The biggest change occurred in the appearance of the band, which is considerably smaller than its predecessor is, and its style has been adapted to the new style of other bands proposed by Jawbone. The good news is that although the new band starting price was higher, now it is below $100. It also forced the price drop of the old bands, which can now be purchased for under $80. Read More
Polar offers, in addition to heartrate monitors and smartwatches, typical training features have also Polar Loop wristband that allows you to Convenience measurement of your daily activities 24 hours a day, 7 days a week. Read More
wrist sizes ranging 140mm–190mm
5.7" - 9.4"
Medical-grade hypoallergenic TPU rubber
Anodized aluminum with less than 0.5% nickel
Polyurethane, ABS + electro plating, PA GF,
Three single color LEDs: Blue for sleep, orange for activity, and white for notifications
85 LED lights in 5 x 17 matrix
Battery life: up to 6 days
Lithium-Ion Polymer, 38 mAh Battery
32° to 122°F
Maximum operating altitude:
Splash-proof, splash-resistant, so no need to worry about rain, sweat from a hard workout or getting wet in the shower. Just don't submerge it.
Surface swimming, shallow snorkeling and similar activities.
The UP2 is equipped with single color LEDs: Blue for sleep, orange for activity, and white for notifications. UP2 is only available in two colors. Applied rechargeable battery allows for seven days work, which is a very good result for this class of devices. Unfortunately, despite the basic water resistance, the device cannot be used while swimming. Read Full Specs
Polar Loop is equipped with 85 LED lights in 5 x 17 matrix that informs about the various functions of the device and about your activity. Loop is only available in three colors. Applied rechargeable battery allows for six days of work, which is a good result for this class of devices. This device allows swimming and diving up to 20 meters. Read Full Specs
2a. Tracking Features
Activity & Inactivity
UP2 equipped with typical sensors for counting steps, distance travelled, calories burned, and track daily activity. This device allows setting your own goals and achievements and displays the status of their implementation. UP2 also measures the quality of your sleep.
Polar Loop has the typical sensors for counting steps, distance traveled, calories burned, and track daily activity. This device allows setting your own goals and achievements and shows the status of their implementation. Measures the quality of your sleep as well. After purchasing, an additional sensor such as HR. Polar H6, or H7 will fill our hearts employment information during our training.
2b. Other Features
Extra non standard
Add heart rate to your workout with the H7 sensor
Sync Polar Loop with an H7 Bluetooth Smart heart rate sensor for accurate heart rate while working out. Get credit for calories burned during activities where you arms are stationary such as indoor cycling.
UP2 also has a barcode scanner combined with an extensive database of food that allows you to quickly enter data to calculate the calories consumed.
Polar Loop also features a watch.
3. Synchronization & Compatibility
iOS 6 and newer
iPhone 4S and iPhone 5 series and iPod touch (5th gen. or newer)
Android 4.3 and later
Windows Phone Compatibility
Mac OS X Compatibility
Mac OS X 10.6 and up
Windows XP, Windows 7, Windows 8 and later
UP by Jawbone™
Polar Flow app
UP2 is compatible with many smartphones working on iOS or Android. Available on these devices, UP by Jawbone Software ™ allows a detailed record of your activity, of meals, quality of sleep. While the Internet can encourage the community members to share their results with family friends which certainly further motivate you to continue the effort.
Polar Flow app records detailed and advanced analysis of your day's activity, time, and quality of sleep. On the basis of the data sent training, you can analyze your activity and plan future training sessions.
4. The Bottom Line
• Compatible with multiple systems and devices
• Works with many applications
• Work with HR sensor available in the extended package
• Inability to swim with the device
• No display of information
• Short battery life
• Short battery life