| Pros | Cons |
|---|---|
| Fantastic grip without tackiness | Weak MagSafe strength |
| Improved finish that hides scratches better | Finish still marks from MagSafe accessories |
| Strong overall drop protection | Heavier than average |
| Excellent interior cushioning and microfiber lining | No bottom feet to reduce wear |
The Caudabe Sheath has been one of our favourite cases for years, but this season we’re running every case through a completely updated scoring system. Fifty cases, thirty drops each, and zero sponsorships. So the question is simple, does the Sheath still hold up once we put real numbers behind it? Let’s find out.
How We Test
30+ drops per case | 6+ metrics recorded per impact | 100% independently tested
Our goal is to find out what cases are actually best for your iPhone. We don’t base our reviews on any of the marketing a company wants you to believe. We’re reviewers, not influencers.
Our case testing procedure for the iPhone 17’s:
- Buy the case ourselves
- Measure all the physical dimensions of the case:
- Weight
- Size
- Back rigidity
- Corner/Back Thickness
- Corner compression
- Rank the handling and access of the iPhone in the case
- Perform magnetic strength tests using a force meter
- Perform audio tests (if needed using a DB meter)
- Perform 30 corner, face and camera lump drop tests. This data is collected from the iPhone’s accelerometer and gyroscope. We’ve built custom drop rigs to ensure every drop almost identical. To gauge the iPhone’s protective abilities, we measure:
- Average peak deceleration
- Average decay rate
- Average impulse
- Average max rotation
- Average angular displacement
- Average settling time
- After we collect all the data, we then run it through or scoring formula to figure out how well the case ranks.
We’ve got a few more ideas to implement for the next round of iPhone’s including more data collection during drops as well as high speed camera photos of the initial impacts.
Design
| Metric | Value | Average |
|---|---|---|
| Weight | 55 g | 45 g |
| Added Case Thickness | 49% | 51% |
| Added Overlook Bulk | 60% | 66% |
Caudabe has come a long way since their TPU sleeves from the iPhone 6 era. The latest Sheath feels far more refined, and honestly, the finish is one of the best you’ll find on any flexible case. It has the perfect amount of texture, grippy but never aggressive.
The finish has been improved this year and resists scratches better, though MagSafe accessories will still leave a visible ring. We also wish Caudabe added small “feet” on the bottom edge to reduce long-term finish wear.
Like the Paragon, the Sheath uses a fully covered camera housing with the same soft-gritty finish. Inside, the phone rests on a layer of luxurious microfiber, and the inner ribs help distribute impact forces during drops.
The biggest design difference vs the Paragon is shape: the Sheath has no taper and stays flat around the entire edge. That contributes to a unique combination. It adds 55g of weight and bulks up the phone by 60%, making it heavier than average but oddly less bulky overall.
Accessibility & Handling
| Metric | Value | Average |
|---|---|---|
| Grip | Amazing non-tacky grip with improved finish; works even with balmy hands | – |
| Buttons | Rounded metallic flow-through buttons; camera control button works | – |
| MagSafe Strength | Pull 7.2 N / Push 8.6 N | 10.1 N |
The grip on the Sheath is outstanding. It doesn’t rely on a sticky coating, doesn’t get slick with balmy hands, and just works in everyday use. Buttons feel identical to the Paragon: rounded, metallic, and cleanly executed flow-thru designs. The camera control button carries the same metal accent, which adds to the premium feel.
But MagSafe is where Caudabe dropped the ball. Detaching accessories required 7.2N and pushing required 8.6N which is roughly 20% below average. Wallets and grips stay on fine, but MagSafe car mounts become questionable, especially on bumpy drives.
Protection
| Metric | Value | Average |
|---|---|---|
| Back Thickness | 2.8 mm | 2.4 mm |
| Corner Thickness | 1.8 mm | 2.9 mm |
| Air Pockets | Present | 10.1 N |
| Rigidity | 23.5 N | 29 N |
| Initial Impact | 8.238 G | 10.3 G |
| Rotation Rate | 194.12°/s | 300°/s |
| Time to Settle | 0.340 s | 0.53 s |
| Settling Rate | 0.265 s⁻¹ | 0.24 s⁻¹ |
| Total Force | 1.329 Ns | 1.5 Ns |
The Sheath has a slightly odd protective layout: a thicker back paired with thinner corners. The corners do contain air pockets, but at their thinnest they’re 1.4mm. The case also flexes more than you’d expect from the thick back, taking 24N to bend 8mm, which is about 15% below average. Corner pop-off resistance is average at 27N.
Drop-test data paints a clearer picture. For corner drops, the initial impact was 19% below average, but the rotation rate improved by 26% and settling by 16%, leading to an overall impact force that was 9% better than average. Surprisingly, the Sheath performed slightly better than the Paragon here.
For face-first drops, initial impact was 31% below average, and settling rate was 47% below yet total force was still 20% better than average. The flat edges likely help spread forces more effectively than expected.
On the camera bump, the thick TPU covering delivered great results: initial impact was 27% lower and total force 22% better than average, though it took a little longer to settle.
Overall? For a slim, flexible case, this thing performs like a tank. At 3ft, it outperforms cases that look twice as rugged.
Value
The Sheath sits in that sweet spot of minimalist design and real-world durability. The grip is top-tier, the finish is refined, and the interior protection is well engineered. The only real knock is the weak MagSafe, which may matter depending on your setup. For most people, especially anyone prioritizing comfort and drop performance, the Sheath delivers excellent value.
Verdict
Would we buy the Caudabe Sheath if we weren’t reviewers? Absolutely. It’s been a go-to case for years, and this updated version still holds its ground after running through our tougher scoring system. The grip is fantastic, the finish is better than ever, and the drop results surprise in all the right ways. The only hesitation is MagSafe strength if you rely heavily on car mounts, take note. Otherwise, the Sheath remains one of the best minimalist protective cases you can get.