PortaPow USB Power Blocker vs ESR iPhone 17 Pro Max Case
Side-by-side comparison of specs, ratings, and value.
| Spec | PortaPow | ESR |
|---|---|---|
| Price | $9.99Better | $12.99 |
| Rating | 4.5 ★ | 4.6 ★Better |
| Reviews | 267 | 146,131Better |
| Brand | PortaPow | ESR |
| Value Score | 0.450Better | 0.354 |
| Overall Score | 25.2 | 54.7Better |
PortaPow
Pros
- + Stops charging;Allows data transfer
Cons
- - Limited use case;Requires manual setup
ESR
Pros
- + Shockproof protection;MagSafe compatible
Cons
- - Limited color options;May not fit all accessories
Verdict
ESR iPhone 17 Pro Max Case wins with a higher overall score (54.7 vs 25.2). However, PortaPow USB Power Blocker offers better value for money.

