Garmin · 2015
Forerunner 235Size, Dimensions & Wrist Fit
The Garmin Forerunner 235 sits best on flat wrist widths of about 47–64mm (≈ 12.6–17.1cm wrist circumference). Adjust the slider below to check your wrist.
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The Forerunner® 235 in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 11 hours of use per charge.
- 42g on the wrist. Lighter than 84% of the 45mm watches we have weights for.
- 1.23" (31.1 mm) diameter display.
- chemically strengthened glass case, chemically strengthened glass glass.
Does the Forerunner 235 fit your wrist?
Drag the slider to your wrist width and see the Forerunner 235 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.
Garmin Forerunner® 235
Case 45.0mm · Lug-to-lug 45.0mm · Thickness 11.7mm · 42g
Balanced Fit
45mm 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 45mm, 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 wrist5.0mm spare each side
Comfortable, with visible skin either side.
- Off the wrist11.7mm off the skin
Normal sports-watch height for a wrist this size. (11.7mm case, back against the skin)
- How it seats~5.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist42g
Light enough to forget you have it on. (0.8g per mm of wrist)
Happy with the fit? Check current availability for the Forerunner 235.
Check offer2D Dimension Schematics
The Forerunner® 235 drawn to scale — from above, and in profile against the wrist.
- Garmin Forerunner® 23545mm · 11.7mm thick
3D preview
Garmin Forerunner® 235 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.
Forerunner® 235 battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch11 hours
How the Forerunner® 235 ranks on battery
Against the 296 Garmin watches in our database, ranked on each figure Garmin publishes.
- Everyday use9 days#230 of 285
- GPS tracking11 hours#240 of 267
Forerunner® 235 specifications
The figures that decide a purchase, followed by every line Garmin publishes.
- Battery life
- Smartwatch Mode: Up to 9 daysGPS mode: Up to 11 hours
- Display
- 1.23" (31.1 mm) diameter
- Resolution
- 215 x 180 pixels
- Glass
- chemically strengthened glass
- Strap
- silicone
- Storage
- 200 hours of activity data
Full specification sheet
79 published lines across 14 groups, unedited
Overview
- Family
- Garmin
General
- Battery life
- Smartwatch Mode: Up to 9 daysGPS mode: Up to 11 hours
- Display Size
- 1.23" (31.1 mm) diameter
- Color display
- Lens Material
- chemically strengthened glass
- Memory/History
- 200 hours of activity data
- Strap material
- silicone
- Display resolution
- 215 x 180 pixels
Sensors
- GPS
- GLONASS
- Thermometer
- yes (tempe™ sensor required)
- Accelerometer
- Garmin Elevate™ wrist heart rate monitor
Product Info
- Main SKU
- 010-03717-54
- Product ID
- 529988
- Product Name
- Forerunner® 235
- Release Date
- 10/21/2015
- Product Variation
- Black and Gray Silicone
Clock Features
- Stopwatch
- Time/date
- Alarm clock
- GPS Time Sync
- Automatic daylight saving time
Cycling Features
- Speed and cadence sensor support (w/sensor)
- Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
Running Features
- Run workouts
- Race predictor
- Foot pod capable
- GPS-based distance, time and pace
- Cadence (provides real-time number of steps per minute)
Activity Profiles
- Cycling
Outdoor Recreation
- Back to start
- Distance to destination
- yes (for back to start)
Daily Smart Features
- Calendar
- Connectivity
- Find My Phone
- VIRB® Remote
- Weather forecasts
- Smart Notifications
- Smartphone compatibility
- iPhone®, Android™
- Controls smartphone music
- Pairs with Garmin Connect™ Mobile
- Connect IQ™ (downloadable watch faces, data fields and apps)
Activity Tracking Features
- TrueUp™
- Step counter
- Calories burned
- Distance traveled
- Intensity minutes
- Garmin Connect™ Challenges app
- yes (optional Connect IQ app)
- Move alerts (displays on device after a period of inactivity)
- Auto goal (learns your activity level and assigns a daily step goal)
Health & Wellness Monitoring
- Sleep
- yes (advanced)
- Hydration
- yes (in Garmin Connect™)
- Women's health
- yes (in Garmin Connect™)
- Resting heart rate
- Wrist-based heart rate (constant, every second)
Kid Activity Tracking Features
- Toe-to-Toe™ Challenges app
- yes (optional Connect IQ Toe-to-Toe™ Challenges app)
Training, Planning and Analysis Features
- HR zones
- HR alerts
- Manual lap
- Auto scroll
- Finish time
- HR calories
- Voice alerts
- Custom alerts
- Recovery time
- VO2 Max (Run)
- Training effect
- Advanced workouts
- Interval training
- GPS speed and distance
- Customizable data pages
- Touch and/or button lock
- Activity history on watch
- Downloadable training plans
- Customizable activity profiles
- Auto Pause® automatic timer halt
- Auto Lap® interval tracking feature
- HR broadcast (broadcasts HR data over ANT+® to paired devices)
Alternatives to the Forerunner® 235
Watches that cover a similar amount of wrist, with the measurements that separate them.
Garmin
D2 Air X15
- Width
- 45mm
- Thick
- 12.5mm
- Weight
- 38g
Garmin
Venu 4 45mm
- Width
- 45mm
- Thick
- 12.5mm
- Weight
- 38g
Garmin
Instinct® 3 – 45 mm, Solar, Tactical Edition
- Width
- 45mm
- Thick
- 14.9mm
- Weight
- 52g
Garmin
Instinct® E – 45 mm
- Width
- 45mm
- Thick
- 14.2mm
- Weight
- 48g
Garmin
Instinct® 3 – 45 mm, Solar
- Width
- 45mm
- Thick
- 14.9mm
- Weight
- 52g
Garmin
Instinct® 3 – 45 mm, AMOLED
- Width
- 45mm
- Thick
- 14.9mm
- Weight
- 53g
Forerunner® 235 — Frequently Asked Questions
Will the Garmin Forerunner 235 fit my wrist?
The Garmin Forerunner 235 looks balanced on flat wrist widths of roughly 47–64mm (about 12.6–17.1cm circumference). Drag the slider above to check it against your own measurement.
How long does the Garmin Forerunner 235 battery last?
Garmin rates it at 11 hours per charge in everyday use.
How does the Garmin Forerunner 235 battery compare with other Garmin watches?
At 9 days in everyday use it ranks #230 of the 285 Garmin watches in our database — below the middle of the range. The full ranking, including GPS and power-saving figures, is on our Garmin battery life comparison.
Is the Garmin Forerunner 235 thick for a 45mm watch?
At 11.7mm, thinner than 82% of 45mm 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 Garmin Forerunner 235?
OnePlus Watch Lite, Oppo Watch S, Google Pixel Watch 4 - 45mm, Tissot T-Race Chronograph PVD / Black / Rubber all sit within half a millimetre of the Garmin Forerunner 235's 45mm case, so they cover the same amount of wrist.
