The uNu DX Protective Battery Case for iPhone 5 dominated the competition for the previous generation of iPhones. For the iPhone 6, however, the uNu DX-6 iPhone 6 Battery Case is a relative letdown. We excused the previous DX generation's overly recessed button cutouts for its excellent performance, value, and slim design. But the DX-6's average performance failed to impress in our tests, and it's no slimmer or lighter than other battery cases we've tested, which made it a bit difficult to forgive its shortcomings. Still, this case will give your iPhone a 6 substantial battery boost.
Design and Features
The uNu DX-6's 3.5-ounce, 6.01-by-2.79-by-0.62-inch (HWD) body is about average for regular iPhone 6 battery cases. Two-in-one designs, like the Boostcase for iPhone 6 ($12.99 at Amazon) , are slightly larger and heavier when fully assembled. However, they let you remove the battery section when it isn't needed, thus dramatically reducing their weight and bulk.
Our review unit came in the all-too-common soft-touch, rubberized-matte black plastic coating, but don't get me wrong: It still looks and feels premium. The DX-6 also comes in Glossy White and Metallic Red options.
Similar Products
Incipio offGrid Express for iPhone 6
Mophie Juice Pack Plus (for iPhone 6)
Tylt Energi Sliding Power Case for iPhone 6
Boostcase for iPhone 6
OtterBox Resurgence Power Case for iPhone 6
Like the Mophie Juice Pack Plus (for iPhone 6), the DX-6 comes in two sections. The main section fits the iPhone 6, while the top section secures the phone in the case. Both sections don't quite fully align, which could bother the pickiest of users.
A drop test proved that the case won't scatter when it hits a hard surface like the Incipio offGrid Express Backup Battery Case 3,000mAh for iPhone 6 did. A small gap between the sections formed along the edges after the drop, but they were easily snapped back into the case. There doesn't seem to be much in the way of shock absorption, and uNu's boasts about the DX-6's protective qualities are fairly thin. The DX-6 may help protect your phone from lighter impacts, but the OtterBox Resurgence Power Case for iPhone 6 has military-rated shock protection, while Mophie's Juice Pack Plus (for iPhone 6) has visible rubber bumpers built into the case—either of which should offer more effective protection against heavier impacts.
As with most battery cases, you'll find a micro USB port for charging your iPhone and case, and it can be used for syncing, too. There's a recessed port hole for the iPhone 6's 3.5mm audio jack, and uNu thankfully includes a headphone adapter, as any headphone connector larger than Apple's EarPods' won't fit through the DX-6's port hole.
The cutouts for the On/Off button on the iPhone 6's right edge and the Volume buttons on the left edge are deeply recessed, making it difficult to press those buttons if you have large thumbs.
Performance and Conclusion
uNu's DX-6 provided our depleted iPhone 6 with 4 hours, 15 minutes of LTE video streaming time with brightness set to maximum, and Wi-Fi and Bluetooth turned off, until the iOS 8 20-percent battery alert appeared. It's a relatively average result, but it could still give your phone enough power to stream two feature-length films, or over four hours of the 10-hour Nyan Cat YouTube video.
Much like the Incipio offGrid Express ($19.99 at Amazon) , the DX-6 is a pretty average performer with pretty average features, for a pretty good $79.95 price. The DX-6 offers better protection for your iPhone 6, but its overly recessed button cutouts could make it difficult to reach for the iPhone 6's side buttons, and the misaligning sections bring up build-quality concerns, too.
If you want to give your iPhone 6 more protection, and can spare an extra $20, you should certainly check out the OtterBox Resurgence ($99.95 at OtterBox) . Even if it has the lowest battery performance we've tested (3 hours, 43 minutes), it'll protect your phone from advanced levels of clumsiness. And if you can spare an additional $20, no battery case can beat the Mophie Juice Pack Plus's combination of performance and protection. You should also check out 2-in-1 battery cases like the Tylt Energi Sliding Power Case for iPhone 6 ( at Amazon) and the Boostcase for iPhone 6. Both offer good performance and versatility, as they let you shed the battery's weight when you don't need it.
The uNu DX-6 battery case for the iPhone 6 is a fairly average performer on all fronts, but some questionable design elements may deter you from buying it.
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