Nothing Phone Case Fit / Model Compatibility
Short Answer
No. Nothing Phone 3, Phone 3a and Phone 4a Pro cases are model-specific and should not be treated as interchangeable.
These phones have different official dimensions, and the matching Spigen Ultra Hybrid products use separate device options, SKUs and case openings. Choose the case whose product page names your exact phone model.
Nothing Phone Case Compatibility at a Glance
| Phone | Official dimensions | Matching Spigen case | Verified SKU |
|---|---|---|---|
| Nothing Phone 3 | 160.6 × 75.59 × 8.99 mm | Ultra Hybrid for Phone 3 | ACS08567 / ACS08568 |
| Nothing Phone 3a | 163.52 × 77.50 × 8.35 mm | Ultra Hybrid for Phone 3a | ACS09373 |
| Nothing Phone 4a Pro | 163.66 × 76.62 × 7.95 mm | Ultra Hybrid for Phone 4a Pro | ACS11632 |
Height, width and depth are listed in that order. The measurements come from Nothing Support; the product and SKU routing comes from current Erawish Shopify product records.
Why Similar Names Do Not Mean the Same Case
Phone 3, Phone 3a and Phone 4a Pro are separate hardware models. Phone 3 is shorter, narrower and thicker than Phone 3a. Phone 4a Pro is close to Phone 3a in height, but it is still narrower and thinner.
A fitted case has to match more than the overall height. Its frame, camera opening, port access and control coverage are built around one device layout. The verified product media shows different rear camera and case-opening geometry for these three models, so visual similarity is not a safe fit test.
Will a Nothing Phone 3 Case Fit Phone 3a?
No. Nothing lists Phone 3 at 160.6 × 75.59 × 8.99 mm and Phone 3a at 163.52 × 77.50 × 8.35 mm. The size difference is material for a close-fitting shell, and Erawish carries them as separate exact-model products.
Will a Nothing Phone 3a Case Fit Phone 4a Pro?
No. Phone 4a Pro is only 0.14 mm taller than Phone 3a, but it is 0.88 mm narrower and 0.40 mm thinner. More importantly, the camera and rear-layout openings shown by the matching case products are different. Do not choose by the shared “a” naming alone.
How to Choose the Correct Spigen Case
- Open the phone's Settings and confirm the exact model name.
- Match that name to the Compatible Device option on the product page.
- Check the SKU when comparing listings or replacing a previous case.
- Review the product media for the correct camera and rear-layout openings.
- If the exact model is not named, wait for a verified fit instead of ordering a similar-looking case.
Which Current Case Matches Each Model?
For Nothing Phone 3, use the Spigen Nothing Phone 3 Ultra Hybrid. The verified variants are Crystal Clear SKU ACS08567 and Zero One SKU ACS08568.
For Nothing Phone 3a, use the Spigen Nothing Phone 3a Ultra Hybrid, Space Crystal SKU ACS09373.
For Nothing Phone 4a Pro, use the Spigen Nothing Phone 4a Pro Ultra Hybrid, Crystal Clear SKU ACS11632.
To browse the current model routes together, visit the Nothing Phone collection.
Who This Guide Is For
This guide is for shoppers who already own Phone 3, Phone 3a or Phone 4a Pro and are deciding whether a similarly named case can be reused. It is also useful when a marketplace title shortens the device name and you need to verify the SKU.
If you own Phone 3a Pro, Phone 4a or another Nothing model, do not use this table as compatibility evidence. Choose only a product that explicitly names your device.
FAQ
Do Nothing Phone 3 and Phone 3a cases fit each other?
No. The phones have different official dimensions and separate exact-model Spigen case products.
Will a Nothing Phone 3a case fit Phone 4a Pro?
No. Similar model names and close height measurements do not make the chassis or case openings interchangeable.
How do I choose the correct Spigen case for a Nothing Phone?
Confirm the exact device name, then match the product's Compatible Device option and SKU. Do not rely on a similar model number or the general shape of the phone.
Does this guide prove compatibility for Phone 3a Pro or Phone 4a?
No. This guide covers only Phone 3, Phone 3a and Phone 4a Pro with the verified SKUs listed above.
Evidence Note
Nothing Support is the source for device dimensions. Erawish Shopify Admin product records are the source for the current model-to-product and model-to-SKU routes. Product availability can change independently and is not part of the compatibility conclusion.
