WatchFitTool

Amazfit Active vs Garmin Fenix 7S Pro Sapphire Solar

Size, specs & wrist fit compared

Amazfit Active
Amazfit Active
42.36mm × 35.9mmFind on AmazonView specs
Garmin Fenix 7S Pro Sapphire Solar
Garmin Fenix 7S Pro Sapphire Solar

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Which one fits you

On wrists narrower than about 44mm, the Amazfit Active is the safer pick — it stays proportionate down to roughly 38mm, where the Garmin Fenix 7S Pro Sapphire Solar starts to hang over the edge. Above 44mm both sit cleanly, and the Garmin Fenix 7S Pro Sapphire Solar gives you more presence.

The Amazfit Active and Garmin Fenix 7S Pro Sapphire Solar share a near-identical 42.36mm case, so wrist presence comes down to thickness, lug-to-lug and weight.

The Amazfit Active is the slimmer of the two (10.75mm vs 14.1mm), so it slides under a cuff more easily.

On the wrist the Amazfit Active feels lighter (27g vs 65g, case only).

Among the 723 42mm watches we hold thickness for, the Amazfit Active is thinner than 87%, so it wears flatter than its width suggests.

Among the 661 42mm watches we hold thickness for, the Garmin Fenix 7S Pro Sapphire Solar is thicker than 80% — it will sit high even though the case width reads modest.

The Amazfit Active is 0.4mm wider, 6.1mm shorter, 3.3mm thinner and 38g lighter than the Garmin Fenix 7S Pro Sapphire Solar.

Amazfit

Active

Garmin

Fenix 7S Pro Sapphire Solar

Case width
42.4mm
42mm−0.4mm
Lug-to-lug
35.9mm
42mm+6.1mm
Thickness
10.8mm
14.1mm+3.3mm
Weight
27g
65g+38g

Switch or add watches

Amazfit Active

Amazfit

Active

Garmin Fenix 7S Pro Sapphire Solar

Garmin

Fenix 7S Pro Sapphire Solar

Watch Fit Tool

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

mm
40.0mm (small)80.0mm (large)
How to Measure
1

Lay arm flat, palm up.

2

Measure the flat width across top of wrist.

Amazfit Active
Case: 42.36mmL2L: 35.9mmThick: 10.75mm
Edge Clearance
+9.55mm
Understated9.55mm+ clearance. Conservative fit - could go larger if you want more wrist presence.
Garmin Fenix 7S Pro Sapphire Solar
Case: 42mmL2L: 42mmThick: 14.1mm
Edge Clearance
+6.5mm
Balanced Fit6.5mm clearance. Comfortable everyday wear with room to spare.

2D Dimension Schematics

Every case drawn to scale on a shared centre — from above, and in profile against the wrist.

Highlight
From above — same centre, true scale
From the side — how far each sits off the wrist
  • Amazfit Active42.4mm × 35.9mm · 10.8mm thick
  • Garmin Fenix 7S Pro Sapphire Solar42mm · 14.1mm thick

3D preview

Amazfit Active vs Garmin Fenix 7S Pro Sapphire Solar on a wrist

Sized to your own wrist, turned any way you like.

Open 3D try-on

Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.

Battery life compared

Furthest apart in Training mode, where the Amazfit Active lasts 34.3× as long as the Garmin Fenix 7S Pro Sapphire Solar (10 days against 7 hours).

Amazfit ActiveGarmin Fenix 7S Pro Sapphire Solar

  • Battery Saver

    720 hours
  • Smartwatch

    14 days
    14 days
  • Training

    240 hours
    7 hours
  • GPS

    16 hours
    46 hours

Specifications

The short version

11 key specs
SpecAmazfitActiveGarminFenix 7S Pro Sapphire Solar
Case Width42.36mm42mm
Lug-to-Lug35.9mm42mm
Thickness10.75mm14.1mm
Weight27g65g
ShapeRectangleCircular
Water Resistance5 ATM10 ATM
GPSYesYes
Display typeOLED/AMOLEDLCD
Screen size1.75 inches1.2 inches
Battery life14 days14 days
Released20232023

Every specification

122 specs
SpecAmazfit ActiveGarmin Fenix 7S Pro Sapphire Solar
Design
width42.3642
height35.942
volume16.35 cm³24.87 cm³
weight27 g65 g
thickness10.7514.1
ATM rating5 ATM10 ATM
resolution390 x 450 px240 x 240 px
screen size1.75 inches1.2 inches
Display typeOLED/AMOLEDLCD
Has a displayYesYes
pixel density341 ppi282 ppi
width of band20 mm20 mm
water resistanceWater resistantWaterproof
Always-On DisplayYesYes
has a touch screenYesYes
is designed for kidsNoNo
Watch band is replaceableYesYes
Has sapphire glass displayNoYes
has branded damage-resistant glassNoNo
waterproof depth rating100 m
Battery
charge time2 hours
battery life14 days14 days
battery power300 mAh
has wireless chargingNoNo
has a removable batteryNoNo
battery life with GPS on16 hours46 hours
Has a solar power batteryNoYes
has a rechargeable batteryYesYes
battery life in training mode240 hours7 hours
battery life in power save mode720 hours
Sensors
has GPSYesYes
has a compassYesYes
Has a barometerNoYes
has a gyroscopeNoYes
Has a cadence sensorNoNo
has an accelerometerYesYes
Monitors perspirationNoNo
Has a heart rate monitorYesYes
Has a temperature sensorYesYes
Monitors blood oxygenation levelsYesYes
Features
release date2023-10-272023-05-31
Has a stopwatchYesYes
Has smart alarmNoNo
warranty period1 years1 years
Has call controlYesYes
Has silent alarmYesYes
has HRV trackingYesYes
internal storage0.25GB32GB
Has notificationsYesYes
Has ECG technologyNoNo
Locates your phoneYesYes
has fall detectionNoYes
has voice commandsNoNo
Acquires GPS fasterYesYes
Has vibrating alertsYesYes
number of microphones1
shows readiness levelYesYes
Can be used to answer callsYesNo
measures resting heart rateYesYes
has irregular heart rate warningsNoNo
has fast/slow heart rate notificationsYesYes
Has a built-in camera remote control functionNoNo
measures VO2 maxYes
Connectivity
has NFCNoYes
supports ANT+NoYes
supports Wi-FiNoYes
supports GalileoNoYes
Bluetooth version5.2
has a cellular moduleNoNo
Is compatible with iOSYesYes
Is compatible with AndroidYesYes
Miscellaneous
Has passcodeYes
Has auto pauseYesYes
Is compatible with WindowsNoYes
Is compatible with Mac OS XNoYes
has an external memory slotNoNo
Compatible with smart scalesYesYes
has a battery level indicatorYesYes
has a socket for a 3.5 mm audio jackNoNo
Compatible with external heart rate monitorsYesYes
Available on PCYes
Can upload mapsYes
Has trackback modeYes
Has a wind speed sensorYes
Provides the sunrise/sunset timeYes
Informs about the risk of thunderstormsYes
App & Software
Ad-freeYesYes
Free appYesYes
Tracks BMIYesYes
Has coachingYesYes
Includes mapsYesYes
Supports routesYesYes
Has achievementsYesYes
Has goal settingYesYes
Has live trackingYesYes
Has exercise diaryYesYes
Predicts ovulationYesYes
Can be personalisedYesYes
Has weight trackingYesYes
Predicts start dateYesYes
Tracks water intakeYesYes
Has inactivity alertsYesYes
Has period notificationsYesYes
Has temperature trackingYesYes
Provides activity reportsYesYes
Displays fertile window notificationsYesYes
Counts how many calories you've burnedYesYes
Doesn’t require accountNo
Activity tracking
Measures paceYesYes
Tracks distanceYesYes
Tracks elevationYesYes
Designed for golfNoYes
Tracks your sleepYesYes
Tracks steps takenYesYes
Designed for divingNoNo
Has a route trackerYesYes
Has exercise taggingYesYes
Tracks calorie intakeYesYes
Provides sleep reportsYesYes
Detects activities automaticallyYesYes
Has a stroke counter for swimmingYesYes
Has multi-sport modeYes

Wrist Fit

Amazfit Active

Sits best on wrists ~3851mm wide (≈ 10.113.6cm circumference).

Garmin Fenix 7S Pro Sapphire Solar

Sits best on wrists ~4460mm wide (≈ 11.716.0cm circumference).

Frequently Asked Questions

Is the Amazfit Active bigger than the Garmin Fenix 7S Pro Sapphire Solar?

The Amazfit Active is bigger — 42.36mm vs 42mm case width.

Which fits a smaller wrist better, the Amazfit Active or the Garmin Fenix 7S Pro Sapphire Solar?

The Amazfit Active suits wrists around 38–51mm wide, and the Garmin Fenix 7S Pro Sapphire Solar around 44–60mm. The one with the smaller lower bound is the safer pick for a small wrist.

Can I see the Amazfit Active and Garmin Fenix 7S Pro Sapphire Solar side by side at true scale?

Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.

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