A phone cover is one of the most fundamental accessories to buy for your S23 Ultra with glass on the front and back and scratchable aluminum sides. Chunky case offer a lot of protection but can make the already massive Galaxy feel too big to comfortably use, so a thin case is the way to go for many people. Luckily, there are plenty of attractive and protective thin covers available for the Samsung Galaxy S23 Ultra. We've rounded up all the best options right here for you to browse through.
Get one of these sleek covers for your S23 Ultra
Why you can trust Android Central Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Colors: Abyss Green, Black
This case is the gold standard for slim cases. You can grab the razor-thin Spigen Thin Fit cover for the Galaxy S23 Ultra in two dark hues. It hugs the phone real tight and barely adds anything to it. The PC material is scratch-resistant and Spigen's Air Cushion technology protects the phone from shocks and impacts.
Colors: Deep Purple, Dark Green, Black
The superb Ringke Onyx comes with a mesmerizing texture that resembles sandpaper but actually feels comfy to hold. It adds lots of grip to the S23 Ultra and comes in three easy-to-love colors. The Deep Purple variant is particularly striking and makes us wish Samsung offered the phone itself in this shade.
Colors: Blueberry Navy, Avo Green, Black Sesame
We here at Android Central are big fans of the Caseology Nano Pop series. Not only does it look great on every single phone, but this case is also consistently durable and long-lasting, not to mention affordable as well. This is a failsafe pick for your Galaxy S23 Ultra.
Colors: Black, Green, Purple, Black with a magnet
TOCOL's S23 Ultra case is so thin, it only measures 0.05mm in width. It has a reinforced rubber frame with grippy sides and you also get two TPU screen guards in the box if you don't already have one of the best S23 Ultra screen protectors. Available in three shades, the back of every colorway is translucent so you can admire your phone in all of its premium glory.
Colors: Carbon Black
Thinborne is the Caseborne spinoff that you didn't know you needed. This thin case for the S23 Ultra is made of rugged aramid fiber, so it's extremely sturdy but hardly weighs a thing. The camera unit is reinforced for added security, but the entire case measures only 0.03 inches thick.
TORRAS makes a lot of excellent cases for the S23 Ultra, but the Magnetic Guardian case is one of the brand's slimmest offerings. This sleek case is translucent with a matte finish. You can use the iPhone's rich ecosystem of MagSafe mounts with this cover since it has a metal ring embedded right on the back.
Colors: 12 assorted shades
The Janmitta Samsung Galaxy S23 Ultra Silicone Case comes in all the colors of the rainbow, from the brightest yellow to the hottest pink. Whether you want plain whites and browns or bold colors that make a statement, this matte silicone case does the job. It's not very protective, but it does have a microfiber lining inside to cushion your S23 Ultra.
Colors: Gold, Black, Blue, Clear, Red, Wine Red
Take your S23 Ultra makeover to the X-level (pun intended) with this paper-thin Samsung Galaxy S23 Ultra Slim Fit Case. This soft TPU cover barely adds any bulk or weight to your Samsung phone and it fits like a glove. This one's matte too, and you get a nice range of solid hues and one clear option to choose from.
Colors: Matte Black
Spigen's Cryo Armor has a cool hexagonal pattern on the back. This isn't just for the aesthetics — though it does look incredibly slick. Your Galaxy S23 Ultra stays safe and secure within this sleek and sturdy cover and the design helps the phone keep cool under heavy load.
Colors: Black/Clear, Clear, Green, Light Blue, Matte Purple, Purple
If you need protection from all directions, the Spidercase waterproof case is a great pick with a built-in screen protector and camera cover. It's one of the thickest cases on the list, but is stil thin for a full coverage case. Whether you're heading to the pool, beach, or lake, this case will keep your phone from getting wet or smashed.
Colors: Black, Blue, Green, Pink
The Otterbox Commuter offers strong protection for your Galaxy S23 Ultra while being thinner than the Defender series. The case edges sit proud of the screen and camera lenses to prevent scratches and cracks if you drop your phone. Despite it's utilitarian design, it still comes in four colors to match your style.
Colors: Abyss Green and Black
The Spigen Optik Armor case offers extra protection for your Galaxy S23 Ultra's massive camera array with a sliding door. Keeping sand and debris away is the best way to prevent scratches on your camera lenses keeping pictures clear and sharp.
These cases don't bulk up your S23 Ultra
There is absolutely no shortage of incredible S23 Ultra cases out there, but some of them can be a bit too thick for everyday use. While these thick materials offer extra drop protection and provide a reassuring heft, they don't fit well into a pocket and can make the phone harder to hold if you don't have large hands. Case designers know this and have created a number of cases that are both thin and protective for the Galaxy S23 Ultra.
The Incipio Duo looks fabulous on the Samsung Galaxy S23 Ultra. This stylish slim case has a wonderfully grippy texture all around. You can easily use all the wireless charging features of your phone since the case is so compact. The antimicrobial layer on top kills germs and the raised bezels add 12-foot drop protection.
Need something unique? The Spigen Cryo Armor looks very different from the slew of sleek covers out there. Its hexagonal pattern keeps the Samsung Galaxy S23 Ultra cool as it allows better airflow. The insides are designed cleverly with air gaps for better impact absorption and the case meets the military standard of drop protection.
Once you're done picking a nice case, grab a screen protector for your S23 Ultra if you don't have one already. Not even the most heavy-duty covers can protect your screen from cracking sometimes.
Sign up for Black Friday email alerts!
Get the hottest deals available in your inbox plus news, reviews, opinion, analysis and more from the Android Central team.