Fitbit Flex 2 v Fitbit Flex: To upgrade your fitness tracker or not?

Is it time to switch out the Flex for the Flex 2?
Fitbit Flex 2 v Fitbit Flex

Fitbit began its journey with clip-on trackers, but its first wrist device, the Fitbit Flex, was a major turning point for the company. It led to several other wearables, but only now have we got a sequel, the aptly called Fitbit Flex 2.

Now, it's obvious that new users will automatically pick up the newer device for its updated features. But there are a few who are likely holding on to the Flex because it's served them so well. If you're wondering about whether to make the jump to Flex 2, then read on below.

Fitbit Flex 2 v Fitbit Flex: Design

Fitbit Flex 2 v Fitbit Flex

The two Flex bands aren't that different in terms of their simple design. The original Flex has a tracker with LEDs that light up when tapped to show your goal progress. The tracker module can also be removed for cleaning or if you want to switch out bands. It's water resistant but not waterproof – so safe for showers and dishwashing but not swimming.

The Flex 2, however, is the company's first swim-proof tracker and is capable of being dunked up to 50m. There's also a removable module with the second Flex, again for cleaning and in case you want to change bands. Just like the first Flex, you can choose from several different elastomer colours or metal necklaces that can house the tracker. These come in handy if you want a more sophisticated look in the office or during a night out.

Fitbit Flex 2 v Fitbit Flex

There's no changing out Flex for Flex 2 bands though, since the sequel is 30% smaller and sleeker. The different form factor makes Flex 2 feel even lighter and less obtrusive on the wrist. There's also a different clasping mechanism that makes putting it on and taking it off easier than the first device.

While the Flex was seen as a solidly designed tracker – minus the annoying clasp – the newer version is an all-round upgrade in terms of looks, comfort and function.

Fitbit Flex 2 v Fitbit Flex: Activity tracking

Fitbit Flex 2 v Fitbit Flex

Using the built-in accelerometer, the Flex can monitor steps taken, distance travelled and calories burned, track sleep and see how many minutes in the day you've been active. Flex 2 can do all this and more.

The SmartTrack feature also comes into play here. Currently, the exercises that can be auto-tracked on Flex 2 include walking, running, outdoor bike rides on pavement, elliptical, aerobic workouts (Zumba or cardio kickboxing) and sports like tennis, basketball and soccer. The first Flex doesn't have SmartTrack.

As mentioned, the Flex sequel is waterproof and capable of swim tracking in the pool. Duration and laps of the following four strokes are auto tracked: freestyle, breaststroke, backstroke and butterfly. You can then head to the app to see your metrics. Pool length can be changed to more accurately track your laps as well.

Neither device packs the advanced features of the Blaze or Charge 2 – there's no heart rate monitoring, VO2 Max or GPS syncing. But those devices are aimed at a slightly different group of people who take fitness a tad more seriously. And it's worth noting that neither the Charge 2 nor the Blaze are swim-proof.

Fitbit Flex 2 v Fitbit Flex: Notifications

Fitbit Flex 2 v Fitbit Flex

Fitbit Flex has five indicator lights that flash various patterns, but that's about it. Flex can't receive and notify you of incoming calls, texts or anything else.

You also have to tap the front of the tracker to see your goal progress. Each solid light represents a 20% increment toward that goal. For example, if your goal is 10,000 steps, three solid lights means you're approximately 60% of the way there and you've taken about 6,000 steps. The Flex vibrates and flashes when you've reached your daily target.

Flex 2 has a similar design with LED lights, but it's an updated version with different colours that signify different notifications. Calls and texts both get blue lights but the haptics are different for each; yellow is for silent alarms and magenta is a reminder to move. Tapping it will show the green and a series of white lights to indicate daily goal progress.

It's a simple system on each fitness tracker but Flex 2 does provide a bit more. There's no screen for notifications (like you'd find on Fitbit Alta), but Flex 2 is smaller, even more discreet and gets the job done.

Fitbit Flex 2 v Fitbit Flex: Battery life and price

Fitbit Flex 2 v Fitbit Flex

Depending on how you use the Flex, you'll get between five and seven days of use on a single charge. That's not so different from Flex 2. It's not bad compared to wearables with displays but not great when you stack it up against other fitness trackers without screens.

Turning off alarms and call/text notifications will give you more time with the Flex 2 – around nine days from our testing. But you're likely stuck with five days for Flex since there's nothing but the alarms to shut off.

For pricing, you can't find many other trackers as cheap as the first Flex. Fitbit sells the device for $80 but on Amazon you can pick it up for $59. Flex 2 is priced higher on both Amazon and the company's site for $99.

Fitbit Flex 2 v Fitbit Flex: Verdict

If you're searching for the one of the most affordable fitness trackers around, Fitbit Flex 2 is probably one of the top wearables you can get, especially if you're not looking for the frills that come with its brethren. Sure the Flex is cheaper and even simpler but the extra cash for the sequel does go a long way – and you'll still be leaving the display and extra notifications behind. On top of the upgraded auto-tracking features, the design is slimmer and easier to clasp, plus it's the only Fitbit that's truly swim-proof. Between the two devices, the clear winner is the Flex 2.

Shop for Fitbit trackers on Amazon

Fitbit Blaze
Fitbit Blaze
Fitbit Charge 2
Fitbit Charge 2
Fitbit Alta HR
Fitbit Alta HR
Fitbit Flex 2
Fitbit Flex 2

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