Galaxy Watch 3 45mm

Galaxy Watch 3 45 mm — dimensions and strap attachment

The larger version of the Galaxy Watch 3 has a 46.2 × 45 × 11.1 mm case and a round 1.4-inch Super AMOLED screen protected by Gorilla Glass DX. A rotating bezel around the dial is used to navigate the menu. The case is made of stainless steel (about 54 g) or titanium (about 43 g), and the watch is rated 5ATM and IP68. The strap attaches with standard spring bars 22 mm wide.

Accessories for the smaller Galaxy Watch 3 41 mm do not fit the 45 mm version — the two differ in case diameter, screen size and strap width. You can tell the versions apart by case diameter and strap width — it is worth measuring the strap at the case before you buy.

Which Galaxy Watch 3 45 mm strap should you choose?

• Silicone and sport straps — original Samsung straps and Tech-Protect models. They handle sweat and water well, so they work for training and swimming.
• Leather straps — Samsung and Tech-Protect, for the office and everyday wear. Leather does not like water, so it is better to swap it out for workouts.
• Steel and Milanese bracelets — Tech-Protect. A Milanese bracelet adjusts continuously, while a steel one adjusts by links.
• Magnetic straps — Dux Ducis, with a magnetically adjustable clasp.
• Straps integrated with a case — Supcase combines the strap with a case cover.

22 mm straps with spring bars also fit other watches with the same attachment — you will find more designs in the watch straps category.

Cases, bezel covers and screen protection for the Galaxy Watch 3 45 mm

Cases and bezel covers

Spigen and Ringke cases protect the watch case from knocks against door frames and countertops. Ringke and Spigen bezel covers protect the rotating bezel from scratches or change its look — the bezel still turns.

Glass or film for the watch screen?

Tempered glass (Ringke, Spigen, Hofi) adds a hard layer on the flat screen. 3mk and GrizzGlass hybrid glass is thinner, while GrizzGlass and Bizon films — including matte and ceramic ones — do not add thickness to the watch and do not interfere with a case.

Charging the Galaxy Watch 3

The watch charges wirelessly on a magnetic dock. A spare Samsung dock is also compatible with the Galaxy Watch Active2, Watch4 and Watch5. You will find accessories for other Samsung watches in the Galaxy Watch category, and other smartwatch accessories in the smartwatches and accessories category. The whole family is covered by the Galaxy Watch3 category.

Frequently asked questions

How do you change the strap on the Galaxy Watch 3 45 mm?

Most straps have quick-release spring bars with a lever — just slide it and pull the strap out of the case. Steel bracelets are usually shortened by removing links.

Does a 22 mm strap from another watch fit the Galaxy Watch 3 45 mm?

Yes, as long as it has standard 22 mm spring bars. The case does not need a dedicated connector.