• 【IMPORTANT NOTE】: ONLY compatible with iPhone 6 or iPhone 6s, NOT FOR iPhone 6 Plus and 6s Plus. What’s more, Smiphee iPhone 6&6s battery case does not support Car Charger, High Voltage or Quick Charge adapters.
  • 【ADD 150% MORE BATTERY LIFE】: Equipped with a powerful 4000mAh built-in lithium polymer battery chip, provides extra 12 hours Internet use,19 hours talk time, 70 hours audio playback to your iPhone 6/6s.
  • 【MAX PROTECTION】: Raised sides and hard-shell design maximizes protection to your iPhone 6 or iPhone 6s, avoid scratching and dropping. In addition, the top piece built in with magnet helps easier installation and avoids missing.
  • 【EASY TO CHARGE AND SYNC】: You can charge your battery case and iPhone 6/6s simultaneously with your existing original iPhone charging cable. Also you can sync your iPhone 6/6s to your MacBook, PC or laptop without removing the battery case.
  • 【100% MONEY BACK GUARANTEE】: Smiphee also delivers the best service, for any reason makes you unsatisfied, we provide a 30 days ask-free money back guarantee, and 1 year warranty. Enjoy this absolutely RISK-FREE purchase by clicking the “Add to Cart” button

This is a great case. I bought this for my 12 year old son. The case is very durable. It's been dropped a few times and has held up nicely, while protecting the phone. It is very easy to install the phone. Just take off the top of the case and slide the phone in. I highly recommend this case! Great product! Great brand!

This was very easy to install and after using it for a week seems like a significant upgrade from the previous Smiphee case I was using. The battery pack charges WHILE it also charges your phone battery, whereas the previous version charged your battery first, then the juice pack. The battery pack also seems to last MUCH longer. The old case would get a little too hot sometimes but I haven't experienced it with this one. Possible downsides are the case is easy to put on but my iPhone 6 moves around just a tiny bit inside the casing. The old case seemed to be made of little harder (more durable?) material, though again, maybe that's why it would get too hot sometimes. All in all, a recommended upgrade.

I've had three battery cases for my iPhone, and this one is by far the best. Reasons why: 1) It uses a Lightning connector rather than a Micro USB cable. I can continue to use my original iPhone cables and accessories. 2) I can plug it in overnight and both the phone and the case will charge. Some cases require you to charge the phone separately from the case. 3) The headphone jack isn't buried so deep in the case that my headphones can't be plugged in. I had a previous case that required an extra dongle in order to get headphones plugged in. 4) It has a matte finish that doesn't easily slip off surfaces or out of your hand. 5) Battery size is great -- 4000mAh is larger than many battery cases. 6) Despite that, it doesn't add an unreasonable amount of bulk to the phone. 7) No garish logo on the case! No logo at all, in fact. 8) Subtle battery indicator does a good job of showing how much charge is left in the case. I can't think of anything I'd want this case to do that it doesn't already do. It really feels like there are no compromises.

I owned the last version of this case and never left home without it. This version is better. I get roughly 3+ full charges out of it, which is amazing. The weight is just a tad bit heavier then the previous version, but barely noticeable, if at all. It charges the phone (and itself) very fast, works with all of my existing Lightning Port charging accessories and also does pass-through charging. It will charge the phone first, then the case, which also comes in very handy. I can also connect my iPhone directly to my PC with the case on and it connects perfectly. The quality of the case itself is excellent. After a few weeks of using it, it has held up with no scuff marks, scratches, etc. The phone also fits into the case like a glove; a perfect fit. I definitely recommend it to anybody looking for a solution like this. You will not be disappointed.

I purchased this phone case about two weeks ago because my iPhone 6s had problems with long battery life since it’s significantly aged since release...this phone case is a lifesaver! It keeps its slim profile while also providing like triple the time I can use the phone! The added feature that I really really love about this case is the lightning port on the bottom, many big brands that cost way more then this case don’t include it and it drives me insane not having a lightning port but this one does! Only thing I would do different about this product is add more color options perhaps to it...the limited variety of this definitely doesn’t allow for much personalization but it’s totally okay.

Previous battery cases I have used suffered from drawbacks due to the audio jacks not plugging into the port fully. However, with this case, that problem is gone and each port is designed flawlessly. Functions as a top tier case on top of having top tier battery storage. Powers my phone quickly to full, with plenty of charge left for later. Pleasing design that doesn't add on extra length to your phone like other cases. Very happy with this product as a case and a charger. Never worry about my phone running out of battery anymore.

I sent this battery case the same day I received it, my iPhone 6s charging cord would not fit, was loose in the charging port, and would not charge the phone in the case or phone out of the case no matter how I moved and braced the insertion point. Trust me I've done all the gyrations to try to make the connection work. The specs say our stock charging/data cord will work, but it did not on this unit I received. So I gave a 1 star review early January 2019, which I've since removed so read on. No problem with Amazon on the return. I was pleasantly surprised when the seller emailed me and offered to send me a replacement at no charge since my original was obviously painfully defective. I agreed to accept the replacement and 4 days later I received another unit of this same product. This one performs as described and expected. See pics above, my iPhone stock charger works, charges the phone and box as well as provides data transfer functionality. I will continue to use this iPhone 6s battery case and will update this review as time moves forward. All is well now, but longevity is now the question that needs to be answered. My previous iPhone 5s had a Mophie pack and lasted 2 years, still going strong as I passed the phone on, so 2 years will be my desired outcome for this products longevity. I will continue to update this review as needed. I'm impressed with this sellers customer service response. I've never been treated so well by a seller anywhere and anytime independent of Amazon customer service dept. which is also wonderful. I realize a product will occasionally come off the line with a defect, and that's what happened to me. Did it inconvenience me, yes...did it disappoint and irritate me, yes... but I knew Amazon stands by their products so I was not overly concerned. I was totally pleased with the customer service response and follow through by the seller's replacement at no charge to me. The seller was only concerned with my satisfaction and not revenue production! This seller will now have a customer for life as I've now completed 2 full discharges and recharges without issues, so it looks like all is good for now, will update as needed!

High quality build and the most aesthetically pleasing battery case for the iPhone 6/6s. I've also owned the the Apple and Mophie battery cases. The Apple battery case has the absolute worst design because of the awkward bulge at the middle. Plus it cost 4x more and has less than half the storage capacity at 1877 mAh. The Mophie case is better but also less appealing because of the elongated design which adds another 1/2" below the phone. This battery case not only has the longest storage capacity, but also spreads the battery cells evenly across the entire back so it's a lot sleeker looking and functional. There is a noticeable weight difference but that's to be expected with the 4000 mAh storage capacity.