
Amazfit · 2020
Bip S LiteSize, Dimensions & Wrist Fit
Case Width
35.3mm
Thickness
11.4mm
Lug-to-Lug
42mm
Weight
30g
The Amazfit Bip S Lite sits best on flat wrist widths of about 44–60mm (≈ 11.7–16.0cm wrist circumference). Adjust the slider below to check your wrist.
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The Bip S Lite in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Between 30 days and 2160 hours per charge depending on the power mode — battery saver at best, smartwatch at worst.
- Water rated to 50 m.
- 30g on the wrist. Lighter than 88% of the 35mm watches we have weights for.
- 1.28 inches LCD display, always-on capable.
- Takes 20mm bands, so third-party straps fit without an adapter.
Does the Bip S Lite fit your wrist?
Drag the slider to your wrist width and see the Bip S Lite 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 — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Amazfit Bip S Lite
Case 42.0mm · Lug-to-lug 42.0mm · Thickness 11.4mm · 30g
Balanced Fit
42mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 42mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist6.5mm spare each side
Comfortable, with visible skin either side.
- Off the wrist11.4mm off the skin
Normal sports-watch height for a wrist this size. (11.4mm case, back against the skin)
- How it seats~4.0mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist30g
Light enough to forget you have it on. (0.5g per mm of wrist)
Happy with the fit? Check current availability for the Bip S Lite.
Check offer2D Dimension Schematics
The Bip S Lite drawn to scale — from above, and in profile against the wrist.
- Amazfit Bip S Lite35.3mm × 42mm · 11.4mm thick
3D preview
Amazfit Bip S Lite on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
How long the Bip S Lite lasts, by power mode
Runtime changes by a factor of 3 depending on what you leave switched on. Bars are scaled against the longest mode.
- Battery Saver2160 hours
- Smartwatch30 days
How the Bip S Lite ranks on battery
Against the 54 Amazfit watches in our database, ranked on each figure Amazfit publishes.
- Everyday use30 days#3 of 54
- Power save90 days#1 of 25
- Capacity200 mAh#49 of 52
Top three in the Amazfit range for everyday (smartwatch) use and power-saving mode.
See all 54 Amazfit watches ranked by battery lifeWhat size band does the Bip S Lite take?
Lug width
20mm
Any 20mm 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 20mm 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 S Lite specifications
The figures that decide a purchase, followed by every line Amazfit publishes.
- Battery life
- 30 days
- Display
- 1.28 inches
- Resolution
- 178 x 178 px
- Water rating
- 5 ATM
- Glass
- Gorilla Glass 3
- Strap
- 20 mm
Full specification sheet
61 published lines across 8 groups, unedited
Design
- width
- 35.3
- height
- 42
- volume
- 16.9 cm³
- weight
- 30 g
- thickness
- 11.4
- ATM rating
- 5 ATM
- resolution
- 178 x 178 px
- screen size
- 1.28 inches
- Display type
- LCD
- Has a display
- width of band
- 20 mm
- water resistance
- Waterproof
- Always-On Display
- has a touch screen
- Gorilla Glass version
- Gorilla Glass 3
- waterproof depth rating
- 50 m
- has branded damage-resistant glass
Battery
- battery life
- 30 days
- battery power
- 200 mAh
- has a rechargeable battery
- battery life in power save mode
- 2160 hours
Sensors
- has an accelerometer
- Has a heart rate monitor
Features
- release date
- 2020-10-02
- Has a stopwatch
- Has call control
- Has silent alarm
- Has notifications
- Locates your phone
- Has vibrating alerts
Connectivity
- has NFC
- supports Wi-Fi
- Bluetooth version
- 5
- has a cellular module
- Is compatible with iOS
- Is compatible with Android
Miscellaneous
- has aptX
- Has passcode
- has a battery level indicator
- Compatible with external heart rate monitors
App & Software
- Ad-free
- Free app
- Tracks BMI
- Supports routes
- Has achievements
- Has goal setting
- Has exercise diary
- Can be personalised
- Has weight tracking
- Predicts start date
- Has period notifications
- Provides activity reports
- Counts how many calories you've burned
Activity tracking
- Measures pace
- Tracks distance
- Tracks your sleep
- Tracks steps taken
- Has a route tracker
- Has exercise tagging
- Has multi-sport mode
- Provides sleep reports
Alternatives to the Bip S Lite
Watches that cover a similar amount of wrist, with the measurements that separate them.

Amazfit
Bip S
- Width
- 35.3mm
- Thick
- 11.4mm
- Weight
- 31g

Amazfit
Nexo
- Width
- 35.4mm
- Thick
- 13.7mm
- Weight
- 49g

Amazfit
Smartwatch 2 ECG
- Width
- 35.4mm
- Thick
- 13.7mm
- Weight
- 49g

Amazfit
Smartwatch 2
- Width
- 35.4mm
- Thick
- 13.7mm
- Weight
- 49g

Amazfit
Bip U Pro
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g

Amazfit
Pop Pro
- Width
- 35.5mm
- Thick
- 11.4mm
- Weight
- 31g
Bip S Lite — Frequently Asked Questions
Will the Amazfit Bip S Lite fit my wrist?
The Amazfit Bip S Lite looks balanced on flat wrist widths of roughly 44–60mm (about 11.7–16.0cm circumference). Drag the slider above to check it against your own measurement.
What size band does the Amazfit Bip S Lite take?
20mm. Any 20mm 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 S Lite battery last?
Between 30 days and 2160 hours per charge, depending on the power mode. Amazfit rates Battery Saver at 2160 hours and Smartwatch at 30 days; the chart above lists all 2 modes.
How does the Amazfit Bip S Lite battery compare with other Amazfit watches?
At 30 days in everyday use it ranks #3 of the 54 Amazfit watches in our database — the top 6% of the range. The full ranking, including GPS and power-saving figures, is on our Amazfit battery life comparison.
Is the Amazfit Bip S Lite thick for a 35mm watch?
At 11.4mm, thicker than 80% of 35mm watches — it will sit noticeably high on the wrist. 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 S Lite?
Apple Watch Series 11 - GPS + Cellular · Titanium · 42mm, Certina DS Action Quartz 34.5 Stainless Steel - Yellow Gold / MOP / Bracelet, Tissot PRX Quartz 35 Stainless Steel / Red, Garmin Lily® 2 all sit within half a millimetre of the Amazfit Bip S Lite's 35.3mm case, so they cover the same amount of wrist.
What is the lug-to-lug of the Amazfit Bip S Lite?
42mm, against a 35.3mm 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.
