4K vs HD Digital Movie Codes: What You Actually Get on Each Platform
A digital code's format label decides what plays on your TV, and the rules differ by platform and studio. This guide is the short version of everything we have learned selling thousands of 4K and HD codes.
The formats
- SD: 480p. Cheap, fine on a phone, soft on a big TV.
- HD (HDX on Vudu): 1080p. The standard for most of the catalog.
- 4K UHD: 2160p with HDR10, and Dolby Vision where the studio mastered it. Needs a 4K TV, a supporting app and roughly 25 Mbps of bandwidth; otherwise it plays in HD.
How each platform treats a code
Vudu (Fandango at Home)
Vudu keeps formats separate. An HDX code gives HDX; a UHD code gives UHD. Redeeming a UHD code for a title you own in HDX upgrades it. Vudu supports Dolby Vision and Dolby Atmos on compatible devices, which is why collectors prefer it for 4K.
Apple TV (iTunes)
Apple stores one version of each film and plays the best quality your device supports. An HD code for a title Apple has in 4K plays in 4K on a 4K Apple TV or compatible smart TV. Apple upgrades most catalog titles to 4K over time at no charge.
Movies Anywhere
Movies Anywhere passes the format through to each retailer according to the studio's rights, and this is where the exceptions live.
Studio rules for 4K codes
| Studio | Where to redeem | Vudu | Apple TV |
|---|---|---|---|
| Universal, Warner Bros, Sony | Movies Anywhere | 4K | 4K |
| Disney, Marvel, Pixar, Star Wars | Movies Anywhere | 4K | HD (Apple often upgrades later) |
| Disney iTunes 4K codes | Apple, then syncs | 4K via Movies Anywhere | 4K |
| 20th Century "through iTunes" | Apple first | 4K after transfer | 4K |
| Paramount, Lionsgate | Vudu or Apple directly | As labelled | As labelled |
Every listing title states the platform, and the description notes any exception, so read both before buying if a specific platform in 4K matters to you.
Which should you buy?
- Apple TV viewer: HD codes are usually enough, since Apple upgrades to 4K. Buy 4K for new releases Apple has not upgraded, or for Disney titles where you want 4K on Apple specifically.
- Vudu viewer with a 4K TV: buy 4K. Vudu will not upgrade an HDX purchase on its own.
- No 4K TV yet: a 4K code still plays in HD today and is ready when you upgrade. If the price difference is a dollar or two, take the 4K.
Frequently asked questions
Does 4K include HDR?
Yes, where the studio released it that way. Nearly all current 4K digital releases include HDR10; many include Dolby Vision on Vudu and Apple.
Can I upgrade later?
Yes. Buy the 4K code for a title you own in HD and redeem it on Vudu or Apple; the library entry upgrades.
Why is a 4K code sometimes cheaper than the HD code?
Supply. Titles with big 4K disc runs have more codes in circulation than their HD-only discs.
Browse all 4K codes, 4K under $10, or HD movies under $5.