WatchFitTool
Amazfit Bip 5 Unity — case dimensions and design

Amazfit

Bip 5 UnitySize, Dimensions & Wrist Fit

Case Width

37.08mm

Thickness

10mm

Lug-to-Lug

45.8mm

Weight

25g

The Amazfit Bip 5 Unity sits best on flat wrist widths of about 4865mm (≈ 12.817.4cm wrist circumference). Adjust the slider below to check your wrist.

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The Bip 5 Unity in short

The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.

  • Between 5 hours and 11 days per charge depending on the power mode — smartwatch at best, training at worst.
  • Water rated to Water resistant.
  • 25g on the wrist. Lighter than 97% of the 37mm watches we have weights for.
  • 1.91 inches LCD display.
  • Takes 22mm bands, so third-party straps fit without an adapter.

Does the Bip 5 Unity fit your wrist?

Drag the slider to your wrist width and see the Bip 5 Unity overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.

Watch Fit Tool

For sports watches, Lug-to-Lug (L2L) is what matters most. Bulky is fine — overhang is not.

mm
40.0mm (small)85.0mm (large)
How to Measure
1

Lay arm flat, palm up.

2

Measure the flat width across top of wrist.

Amazfit Bip 5 Unity
Case: 37.08mmL2L: 45.8mmThick: 10mm
Edge Clearance
+4.6mm
Balanced Fit4.6mm clearance. Comfortable everyday wear with room to spare.

Happy with the fit? Check current availability for the Bip 5 Unity.

Check price on Amazon

How long the Bip 5 Unity lasts, by power mode

Runtime changes by a factor of 53 depending on what you leave switched on. Bars are scaled against the longest mode.

  • Smartwatch11 days
  • Battery Saver26 hours
  • Training5 hours
Charges in 2 hours

What size band does the Bip 5 Unity take?

Lug width

22mm

Any 22mm strap fits, so you are not restricted to Amazfit's own bands. Quick-release pins let you swap without tools — check that a replacement lists 22mm and quick-release before buying.

Affiliate disclosure: As an Amazon Associate, WatchFitTool earns from qualifying purchases. If you buy through links on this page, we may earn a commission at no extra cost to you. Learn more.

Bip 5 Unity specifications

The figures that decide a purchase, followed by every line Amazfit publishes.

Battery life
11 days
Display
1.91 inches
Resolution
320 x 380 px
Water rating
Water resistant
Strap
22 mm
Charging
2 hours

Full specification sheet

107 published lines across 8 groups, unedited

Design

width
37.08
height
45.8
volume
16.98 cm³
weight
25 g
thickness
10
resolution
320 x 380 px
screen size
1.91 inches
Display type
LCD
Has a display
pixel density
260 ppi
width of band
22 mm
water resistance
Water resistant
Always-On Display
has a touch screen
is designed for kids
Watch band is replaceable
Has sapphire glass display
Ingress Protection (IP) rating
IP68
has branded damage-resistant glass

Battery

charge time
2 hours
battery life
11 days
battery power
300 mAh
has wireless charging
has a removable battery
Has a solar power battery
has a rechargeable battery
battery life in training mode
5 hours
battery life in power save mode
26 hours

Sensors

has GPS
has a compass
Has a barometer
has a gyroscope
Has a cadence sensor
has an accelerometer
Monitors perspiration
Has a heart rate monitor
Has a temperature sensor
Monitors blood oxygenation levels

Features

Has a stopwatch
Has smart alarm
warranty period
1 years
Has call control
Has silent alarm
has HRV tracking
measures VO2 max
Has notifications
has a front camera
has voice commands
Acquires GPS faster
Has vibrating alerts
shows readiness level
Can be used to answer calls
measures resting heart rate
has irregular heart rate warnings
has fast/slow heart rate notifications
Has a built-in camera remote control function

Connectivity

has NFC
supports Wi-Fi
supports Galileo
Bluetooth version
5.2
has a cellular module
Is compatible with iOS
Is compatible with Android

Miscellaneous

Has passcode
Has auto pause
Is compatible with Windows
Is compatible with Mac OS X
has an external memory slot
Compatible with smart scales
has a battery level indicator
has a socket for a 3.5 mm audio jack
Compatible with external heart rate monitors

App & Software

Ad-free
Free app
Tracks BMI
Has coaching
Includes maps
Supports routes
Has achievements
Has goal setting
Has live tracking
Has exercise diary
Predicts ovulation
Can be personalised
Has weight tracking
Predicts start date
Tracks water intake
Has inactivity alerts
Has period notifications
Has temperature tracking
Provides activity reports
Displays fertile window notifications
Counts how many calories you've burned

Activity tracking

Measures pace
Tracks distance
Tracks elevation
Designed for golf
Tracks your sleep
Tracks steps taken
Designed for diving
Has a route tracker
Has exercise tagging
Has multi-sport mode
Tracks calorie intake
Provides sleep reports
Detects activities automatically
Has a stroke counter for swimming

Bip 5 Unity — Frequently Asked Questions

Will the Amazfit Bip 5 Unity fit my wrist?

The Amazfit Bip 5 Unity looks balanced on flat wrist widths of roughly 48–65mm (about 12.8–17.4cm circumference). Drag the slider above to check it against your own measurement.

What size band does the Amazfit Bip 5 Unity take?

22mm. Any 22mm strap fits, so you are not limited to Amazfit's own bands — look for a quick-release fitting if you want to swap without tools.

How long does the Amazfit Bip 5 Unity battery last?

Between 5 hours and 11 days per charge, depending on the power mode. Amazfit rates Smartwatch at 11 days and Training at 5 hours; the chart above lists all 3 modes.

Is the Amazfit Bip 5 Unity thick for a 37mm watch?

At 10mm, thinner than 79% of 37mm watches, so it slides under a cuff more easily than most of its size. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.

What other watches are the same size as the Amazfit Bip 5 Unity?

Zenith Defy A3643 Revival, Omega Museum Collection Seamaster Milano Cortina 2026 Winter Olympics, Kieslect Ks2, Noise ColorFit Icon 3 all sit within half a millimetre of the Amazfit Bip 5 Unity's 37.08mm case, so they cover the same amount of wrist.

What is the lug-to-lug of the Amazfit Bip 5 Unity?

45.8mm, against a 37.08mm case width. Lug-to-lug is the measurement that decides overhang: if it exceeds the flat width of your wrist, the lugs sit past the edge no matter how modest the case diameter looks.