Spigen sells six distinct ways to protect the Apple Watch Ultra 4 on Amazon: four cases, a case with a built-in screen protector, and a standalone tempered glass protector sold separately. All of them fit the 49mm case size across the last several Ultra generations.
Prices run from $16.99 to $21.99, and every case here keeps cutouts for the Digital Crown, Action Button, and side button intact. It’s a different set of picks from the Spigen Ultra 2 case that we covered separately, and it pairs naturally with the Spigen Apple Watch Ultra 4 bands in this same lineup.
Spigen Rugged Armor Is the Cheapest Case in the Lineup at $16.99
Rugged Armor uses shock-absorbent TPU with carbon fiber detailing along the sides, and raised edges around the screen and bezel guard against scratches and dings. It’s the standard protective option in Spigen’s Ultra 4 lineup, without a built-in screen protector.
At $16.99 it’s the least expensive case here, built for anyone who wants everyday drop protection without extra bulk or features.
Price: $16.99
Buy on Amazon
Spigen GlasTR EZ FIT Is a Standalone Tempered Glass Screen Protector
GlasTR EZ FIT is 9H tempered glass cut to the Ultra 4’s display, sold in a 2-pack with an alignment tray that snaps over the watch face for a bubble-free install. It’s the pick for anyone who already has a case they like and just wants scratch protection for the screen itself.
At $16.99 for two protectors, it’s tuned to preserve touch response and works with the Always-On display, ECG, and wrist-temperature sensors.
Price: $16.99
Buy on Amazon
Spigen Thin Fit Keeps the Watch’s Original Profile Intact
Thin Fit is a slim polycarbonate shell built to add protection without changing how the Ultra 4 looks or feels on the wrist. It snaps on in seconds and skips the carbon fiber styling of Rugged Armor for a more minimal, understated cover.
At $18.99 it’s for anyone who wants a case that disappears visually rather than making a statement.
Price: $18.99
Buy on Amazon
Spigen’s Lock Fit Case Adds Smart Lock Technology on the Action Button
This case uses a hybrid polymer shell with a lock switch built directly over the Action Button, stopping accidental presses that Rugged Armor and Thin Fit don’t guard against. An orange accent marks the button’s location under the case.
At $18.99 it costs the same as Thin Fit but solves a specific annoyance instead of just adding drop protection.
Price: $18.99
Buy on Amazon
Spigen Bundles Rugged Armor With a Screen Protector for the Same $18.99
This version pairs the same Rugged Armor TPU shell with a 9H tempered glass screen protector already fitted, plus an alignment tool included for reapplying it later. It’s the only case in this lineup that covers the screen and the body in one purchase.
At $18.99 it matches the price of Thin Fit and Lock Fit while adding glass protection neither of those cases includes.
Price: $18.99
Buy on Amazon
Spigen Rugged Armor Pro Combines the Case and Band Into One Piece
Rugged Armor Pro takes the same TPU shell and carbon fiber styling as the standard Rugged Armor case and builds it into a single unit with an attached strap, so there’s no separate band to swap in. It’s the bulkiest and most rugged-looking option in the lineup.
At $21.99 it’s the most expensive item here, priced for anyone who wants one continuous piece of gear rather than a case and band bought separately.
Price: $21.99
Buy on Amazon
