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There are three sizes available in the Garmin Fenix 8 range 43mm, 47mm and 51mm.

The Fenix 8 51mm lasted 12-13 days with the same use, pretty much doubling the Fenix 8 47mm.

Garmin Fenix 8 51mm vs 47mm

Garmin Fenix 8 47mm

Garmin Fenix 8

Garmin Fenix 8 51mm vs 47mm

Garmin Fenix 8 51mm vs 47mm

Garmin Fenix 8 51mm vs 47mm

Garmin Fenix 8 51mm vs 47mm

Garmin Fenix 8 and Garmin Instinct 3

Garmin Fenix 8 vs Coros Vertix 2S

Garmin Fenix 8 vs Garmin Forerunner 965

Close-up of the Apple Watch Ultra 2 (left) next to the Garmin Instinct 3 (right) in a user�s hand

The 41mm and 45mm Pixel Watch on a red table with accessories

Close-up of the Garmin Vivoactive 6 smartwatch in green on a user�s wrist with foliage shown out of focus around it

Garmin Vivoactive 6 in emerald green with the Morning Report shown on the screen

Close-up of the Bark Smartwatch for kids

Fitbit Sense 2 on a person�s wrist

Close-up of a user�s wrist wearing both the Apple Watch 10 on a blue fabric strap (left) next to the Garmin Vivoactive 6 (right) on an emerald green strap

Apple Watch SE sitting on a red table with the owner�s Activity Rings shown nearly closed

Close-up of the Garmin Instinct 3 in teal on a user�s wrist next to an all-black Apple Watch Series 10m on a dark blue band

The LG C5 (on left) faces off against the Samsung S95F (on right).

HDMI input

A split image featuring the Nectar Classic Memory Foam Mattress on the left and the DreamCloud Luxury Hybrid on the right, leading into the DreamCloud Luxury Hybrid vs Nectar Classic showdown

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The image shows the Casper Hybrid with Snow Technology pillow on the left and the Coop Cool+ pillow on the right in a side by side comparison

MacBook Pro 2021 (16-inch) on a patio table