Garmin · 2022
Fenix 7X Solar Size, Dimensions & Wrist Fit
The Fenix 7X Solar looks in proportion on wrists of 18 cm (7.1 in) and up round, and fills the wrist at 19 cm and up (lug-to-lug estimated at ≈58.5mm; Garmin does not publish it).
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Does the Fenix 7X Solar fit your wrist?
The 42mm suits wrists of about 15 cm and up round; the 47mm, 16.5 cm and up; the 51mm, 18 cm and up. Where the ranges overlap, the smaller one leaves more skin either side and the larger one fills the wrist.
| Wrist round (mm left each side) | 42mm≈48.5mm lug to lug, est. | 47mm≈54mm lug to lug, est. | 51mm≈58.5mm lug to lug, est. |
|---|---|---|---|
| 14 cm / 5.5 in | Overhangs (1.7mm over) | Overhangs (4.4mm over) | Overhangs (6.7mm over) |
| 15 cm / 5.9 in | Overhangs (0.1mm over) | Overhangs (2.8mm over) | Overhangs (5.1mm over) |
| 16 cm / 6.3 in | Sweet spot (1.6mm) | Overhangs (1.2mm over) | Overhangs (3.4mm over) |
| 17 cm / 6.7 in | Sweet spot (3.2mm) | Bold (0.4mm) | Overhangs (1.8mm over) |
| 18 cm / 7.1 in | Balanced (4.8mm) | Sweet spot (2mm) | Overhangs (0.2mm over) |
| 19 cm / 7.5 in | Balanced (6.4mm) | Sweet spot (3.6mm) | Bold (1.4mm) |
| 20 cm / 7.9 in | Balanced (8mm) | Balanced (5.3mm) | Sweet spot (3mm) |
The Fenix 7X Solar in short
- The 47mm version is 4mm narrower, 0.4mm thinner and 17g lighter; the 42mm version is 9mm narrower, 0.8mm thinner and 33g lighter.
- Replaced by the Fenix 8 51mm Solar, which is 0.5mm thicker and 1g lighter.
Compare the Fenix 7X Solar head to head
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Size, fit and battery side by side, against any smartwatch we list.
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Fenix 7X Solar battery life
Runtime by power mode
- Battery Saver90 days
- Smartwatch37 days
- GPS122 hours
- Heavy use77 hours
Solar charging extends these figures
Where it ranks among Garmin watches
- Everyday use37 days#16 of 281
- GPS tracking122 hours#6 of 267
- Power save90 days#8 of 144
2D Dimension Schematics
- Garmin Fenix 7X Solar 51mm × ≈58.5mm (est.) · 14.9mm thick
3D preview
Garmin Fenix 7X Solar on a wrist
What size band does the Fenix 7X Solar take?
Lug width
26mm
Garmin QuickFit: the strap latches over a fixed bar, so a replacement has to be a 26mm QuickFit strap (Garmin's or a third-party QuickFit one), not an ordinary pin strap.
Alternatives to the Fenix 7X Solar
51mm · 15.8mm thick · 99g51mmGarmin
Fenix 9 Pro inReach 51mm
51mm · 16.6mm thick · 102g51mmGarmin
Fenix 9 Pro Solar 51mm
51mm · 14.7mm thick · 91g51mmGarmin
Fenix 9 51mm
51mm · 16.5mm thick · 90g51mmGarmin
D2 Mach 2 Pro
51mm · 14.7mm thick · 94g51mmGarmin
Tactix 8 51mm AMOLED Cerakote Coating
51mm · 14.7mm thick · 92g51mmGarmin
D2 Mach 2 51mm
Fenix 7X Solar — Frequently Asked Questions
Is the Garmin Fenix 7X Solar thick for a 51mm watch?
At 14.9mm, thinner than 87% of the 52 smartwatches 51mm across that we track, so it slides under a cuff more easily than most of its size.
Fenix 7X Solar specifications
- Battery life
- 37 days
- Display
- 1.4 inches
- Resolution
- 280 x 280 px
- Water rating
- 10 ATM
- Strap
- 26 mm
- Storage
- 16GB
Show all specificationsGarmin's published specification, for reference · checked September 2026
Design
- width
- 51
- height
- 51
- volume
- 38.75 cm³
- weight
- 96 g
- thickness
- 14.9
- ATM rating
- 10 ATM
- resolution
- 280 x 280 px
- screen size
- 1.4 inches
- Display type
- LCD
- Has a display
- Yes
- pixel density
- 282 ppi
- width of band
- 26 mm
- water resistance
- Waterproof
- Always-On Display
- Yes
- has a touch screen
- Yes
- is designed for kids
- No
- waterproof depth rating
- 100 m
- Watch band is replaceable
- Yes
- Has sapphire glass display
- No
- maximum operating temperature
- 45 °C
- has branded damage-resistant glass
- Yes
- lowest potential operating temperature
- -20 °C
Battery
- battery life
- 37 days
- has wireless charging
- No
- has a removable battery
- No
- battery life with GPS on
- 122 hours
- Has a solar power battery
- Yes
- has a rechargeable battery
- Yes
- battery life in training mode
- 77 hours
- battery life in power save mode
- 2160 hours
Sensors
- has GPS
- Yes
- has a compass
- Yes
- Has a barometer
- Yes
- has a gyroscope
- Yes
- Has a cadence sensor
- No
- has an accelerometer
- Yes
- Monitors perspiration
- No
- Has a heart rate monitor
- Yes
- Has a temperature sensor
- Yes
- Monitors blood oxygenation levels
- Yes
Features
- release date
- 2022-01-18
- Has a stopwatch
- Yes
- Has smart alarm
- Yes
- Has call control
- Yes
- Has silent alarm
- Yes
- has HRV tracking
- Yes
- internal storage
- 16GB
- measures VO2 max
- Yes
- Has notifications
- Yes
- Has ECG technology
- No
- Locates your phone
- Yes
- has fall detection
- Yes
- has voice commands
- No
- Acquires GPS faster
- Yes
- Has vibrating alerts
- Yes
- shows readiness level
- Yes
- Can be used to answer calls
- No
- measures resting heart rate
- Yes
- has irregular heart rate warnings
- No
- has fast/slow heart rate notifications
- Yes
- Has a built-in camera remote control function
- No
Connectivity
- has NFC
- Yes
- supports ANT+
- Yes
- supports Wi-Fi
- Yes
- supports Galileo
- Yes
- has a cellular module
- No
- Is compatible with iOS
- Yes
- Is compatible with Android
- Yes
Miscellaneous
- Has auto pause
- Yes
- Available on PC
- Yes
- Can upload maps
- Yes
- Has trackback mode
- Yes
- Has a wind speed sensor
- No
- Is compatible with Windows
- Yes
- Is compatible with Mac OS X
- Yes
- has an external memory slot
- No
- Compatible with smart scales
- Yes
- has a battery level indicator
- Yes
- Provides the sunrise/sunset time
- Yes
- has a socket for a 3.5 mm audio jack
- No
- Informs about the risk of thunderstorms
- Yes
- Compatible with external heart rate monitors
- Yes
App & Software
- Ad-free
- Yes
- Free app
- Yes
- Tracks BMI
- Yes
- Has coaching
- Yes
- Includes maps
- Yes
- Supports routes
- Yes
- Has achievements
- Yes
- Has goal setting
- Yes
- Has live tracking
- Yes
- Has exercise diary
- Yes
- Predicts ovulation
- Yes
- Can be personalised
- Yes
- Has weight tracking
- Yes
- Predicts start date
- Yes
- Tracks water intake
- Yes
- Has inactivity alerts
- Yes
- Has period notifications
- Yes
- Has temperature tracking
- Yes
- Doesn’t require account
- No
- Provides activity reports
- Yes
- Displays fertile window notifications
- Yes
- Counts how many calories you've burned
- Yes
Activity tracking
- Measures pace
- Yes
- Tracks distance
- Yes
- Tracks elevation
- Yes
- Designed for golf
- Yes
- Tracks your sleep
- Yes
- Tracks steps taken
- Yes
- Designed for diving
- No
- Has a route tracker
- Yes
- Has exercise tagging
- Yes
- Has multi-sport mode
- Yes
- Tracks calorie intake
- Yes
- Provides sleep reports
- Yes
- Detects activities automatically
- Yes
- Has a stroke counter for swimming
- Yes
