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Fitbit Alta HR vs Charge 2

We sell a lot of fitness monitor and fit watch replacement straps, but which smart watch suits you better? 

The Fitbit range offers different functions and styles, the Fitbit Ace is modified for kids, the fitwatch has less functions and a smaller size screen.

The two top selling Fitbits are the Alta HR and the Charge 2, both with pulse rate monitor, so what are the key differences and which one is the best for you? 

Different fitness functions 

This is where the Charge 2 has the edge with the Connected GPS function which connects to your phone and relays the information,especially useful if you are using your fitwatch for running.

Alta HR

  • Call, Text & Calendar Alerts
  • Battery Up to 7 Days
  • Track your all-day activity
  • Reminders to Move
  • PurePulse Heart Rate Monitor
  • Charge time: 1 to 2 hours
  • Tap control

Charge 2

  • PurePulse heart rate monitor
  • Multi-sport tracking
  • Connected GPS provides real-time run stats 
  • Smartphone alerts
  • Charge time: 1 to 2 hours
  • Tap control
  • Guided breathing sessions for moments of calm 



The Charge 2 has a wide screen and the Alta is considerably slimmer. 

Alta HR

w:  15.5 mm

h:  12.3 mm

d:   40.8 mm

W: 23g

Charge 2 

w:  22.5 mm

h:  12.9 mm

d:   250.6 mm

W: 35g


The Charge 2 is more expensive than the Alta HR, £138 best price compared to £65.

Battery life

Up to 5 days for both the Charge 2 and the Alta HR

The watchstraps

The Alta is a narrower strap, the Charge 2 is almost double the width so the immediate difference is very noticeable. 

Replacement straps for the Alta HR

Our range for the Alta HR include: Metal, leather and silicone, the silicone straps come in blue, light blue, white, pink, grey and black.

Replacement straps for the Charge 2

We have a great range of options for the Charge 2: Metal, leather and silicone, the silicone straps come in more colours than the Alta HR, purple, turquoise, mauve, coral, blue, light blue, white, pink, grey and black.

So, which Fitbit suits you? 

If you prefer a slimmer Fitwatch, the Alta HR is the better option and it's a little cheaper than the Charge 2. 

The Charge 2 has better functionality if you want to connect your phone to your fitwatch, and the bigger screen size is easier to use. 


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