Review: ZENS Power Bank Will Charge Your iPhone and Apple Watch

by

ZENS recently debuted its latest product, an iPhone/Apple Watch Power Bank that has a built-in Apple Watch charging puck and a USB port, allowing you to charge all of your devices at once.

Priced at €69.99 (or $78.00) the 4,000 mAh ZENS Power Bank is about the size and shape of a chocolate bar, though perhaps a bit wider. Because it's neither short nor particularly flat, it doesn't fit well in a pocket, but it's a good size for a backpack or bag when traveling.

zenspowerbankdesign
The Power Bank is sturdy and well-made, constructed from a soft-finish black plastic material. At one end, there's an Apple Watch charging puck built into the device, and at the top, there's a USB port for plugging in an iPhone or other USB-powered device, and a micro-USB port that's used for charging.

There's a single button that's used as an on/off switch, which needs to be pressed whenever the Apple Watch is placed on top of it to activate charging. The Power Bank has a single blue LED next to the micro-USB port so you can tell if it has charge left, but because there aren't multiple LEDs, there's no way to tell exactly how much charge is remaining.

zenspowerbankusbport
Due to the flat, skinny shape of the ZENS Power Bank, I sometimes had trouble getting my Apple Watch situated just right so it would charge, and a knock was enough to dislodge it if I happened to hit it when reaching for something on my nightstand in the middle of the night. That said, it does work with multiple bands and it's no less convenient than using the Apple Watch charger on its own.

zenspowerbankthickness
I took the ZENS iPhone/Apple Watch Power Bank with me on a trip recently, and I can confirm that at 4,000 mAh, it has enough juice to keep an Apple Watch charged for a week. I used it for nine days straight to keep my 38mm Apple Watch charged, but I wasn't draining it every single day.

As for the iPhone, the ZENS Power Bank can do just about one full iPhone 7 Plus charge and one full Apple Watch charge, but that eats up a lot of the capacity because it's limited to 4,000 mAh, which is on the small side for portable iPhone batteries.

I was able to get it to charge my iPhone 7 Plus and my Apple Watch, but it was essentially drained after that. I don't have an iPhone 7 to test, but you could potentially get two charges out of the Power Bank because the iPhone 7 has a lower-capacity 1,960 mAh battery inside. It's worth noting that the Power Bank offers 2-amp charging, so the iPhone will charge at a decent speed.

zenspowerbankwithapplewatch
Because it can only deliver a single charge to an iPhone 7 Plus and an Apple Watch simultaneously, this is only going to work for day trips when you need a little extra juice. Conferences, a long day at Disneyland, and a night camping will all work fine, but don't buy this for a longer trip unless you only need to charge your Apple Watch.

If you just want something to power the Apple Watch, this will work for a solid week of standard Apple Watch use. A little more if you're not using much battery, and a little less if you're draining your watch every day.

At home, the Power Bank is nice if you want an Apple Watch charger that has no cords and only needs to be charged once a week from a computer or USB power adapter (it doesn't come with one). It can sit on a desk without taking up too much room, and its neutral design will match most decor.

Bottom Line

The ZENS iPhone/Apple Watch Power Bank costs approximately $78, which is not a great price for a 4,000 mAh battery pack.

On Amazon, you can get a smaller 5,200 mAh battery pack for $15.99, or a 10,000 mAh battery pack for $30, but it won't have the built-in Apple Watch charger that's in the ZENS Power Bank.

zenspowerbankfinal
If you don't want to carry around an Apple Watch charger and want a built-in solution, the ZENS iPhone/Apple Watch Power Bank will deliver it, but personally, I'd rather pay much less for more power, especially if I'm seeking something that's got enough juice to charge my iPhone. You're going to be carrying a micro-USB charging cord and a Lightning cord to charge the iPhone if you use the ZENS Power Bank anyway, so I'm not sure how much of a convenience factor it's adding.

If you want a cord-free desktop Apple Watch charging solution or need a way to power an Apple Watch alone for a week, however, the ZENS iPhone/Apple Watch Power Bank could be worth checking out.

Pros:

  • Can keep Apple Watch charged for a week
  • Built-in Apple Watch charging puck

Cons:

  • Expensive
  • Low capacity
  • Not suitable for more than 1 iPhone 7 Plus charge
  • Requires micro-USB cord for charging
  • No way to determine charge level

How to Buy

The ZENS iPhone/Apple Watch Power Bank can be purchased from the ZENS website for €69.99 or about $78. It ships from the Netherlands to the United States and many other countries around the world.

Tags: review, ZENS

Top Rated Comments

(View all)
Avatar
50 months ago

Kickstart it! I bet there are a lot of people who would pay $30 for a cable like that. I wonder how much both MFi components would cost?

I don't have the time nor the wherewithal to do that. If someone that does is reading this, I'm picturing a simple white cable, 4 feet long. One end is a standard USB-A plug (or USB-C maybe?) The other end is a regular lightning plug. About 4-6" down from the lighting-end of the cable is the charging puck, where the cable comes in from the USB end on one side, and 180-degrees oppose it the cable comes out to the lightning end.

[]USB]---------------3'6"---------------((puck))----6"----==lightning
Score: 2 Votes (Like | Disagree)
Avatar
50 months ago

I don't have the time nor the wherewithal to do that. If someone that does is reading this, I'm picturing a simple white cable, 4 feet long. One end is a standard USB-A plug (or USB-C maybe?) The other end is a regular lightning plug. About 4-6" down from the lighting-end of the cable is the charging puck, where the cable comes in from the USB end on one side, and 180-degrees oppose it the cable comes out to the lightning end.

[]USB]---------------3'6"---------------((puck))----6"----==lightning

As long as we're dreaming, can I ask for a bare puck that has a lightning socket in the side so I can just stick it on the end of a lightning cable?
Score: 2 Votes (Like | Disagree)
Avatar
50 months ago
I don't quite get why they used micro-USB.
Score: 1 Votes (Like | Disagree)

Top Stories

Hands-On With iOS 14 Widgets, Custom Icons, and Home Screen Setup

Tuesday September 22, 2020 3:25 pm PDT by
Apple with iOS 14 introduced widgets on the Home Screen, leading to unprecedented levels of customization for the iPhone. Combined with Shortcuts that let you change an app's icon, iOS 14 lets you create a whole new look for your Home Screen. Subscribe to the MacRumors YouTube channel for more videos. We've been following along with some of the creative alternative Home Screen designs that M...

New Images Leak of iPhone 12 Braided USB-C to Lightning Cable

Thursday September 24, 2020 2:37 am PDT by
Rumors suggest Apple's upcoming iPhone 12 models will ship with a new Lightning to USB-C cable that includes a braided fabric design. Images of the purported cables were leaked in July, and today leaker Mr White has shared new images that give us a closer look at what we might get included in the iPhone 12 box. The photos show a USB-C to Lightning cable with a clearly braided design rather...

Apple's iPhone 12 Event Could Happen on October 13 Based on Rumors From Mobile Operators

Wednesday September 23, 2020 11:51 am PDT by
Apple's upcoming iPhone-centric event could perhaps be held on Tuesday, October 13, according to information shared with MacRumors by an employee at a UK cellular carrier. There's no way for us to confirm the dates at this point in time nor are we sure on the credibility of the source, but even without a rumor, Tuesday, October 13 is a good guess based on Apple's historic launch timelines, ...

New Version of Microsoft Office Coming Next Year That Won't Require a Subscription

Thursday September 24, 2020 1:53 am PDT by
Microsoft will next year offer a new perpetual release of Microsoft Office for Mac and Windows that doesn't require a subscription to use, according to the software giant (via Windows Central). "Microsoft Office will also see a new perpetual release for both Windows and Mac, in the second half of 2021," said Microsoft in a blog post announcing the next version of its Exchange server,...

Interest in iOS 14 Home Screen Ideas Helps Pinterest Break Daily Download Record

Wednesday September 23, 2020 4:37 am PDT by
Apple's introduction of widgets on the Home Screen in iOS 14 has driven a surge in interest among users looking to customize their iPhone, and that has reportedly had a knock-on effect for Pinterest, whose iOS app has seen record downloads as users flock to its content seeking design inspiration. As reported by TechCrunch, App Store intelligence firm Apptopia was first to note the impact of ...

'iPhone 12 mini' Name Reappears in Leaked Apple iPhone 12 Case Stickers

Friday September 25, 2020 1:58 am PDT by
Earlier this week a proven leaker claimed that the iPhone 12 lineup would be named "iPhone 12 mini," "iPhone 12," "iPhone 12 Pro," and "iPhone 12 Pro Max," and today the same nomenclature has appeared again in a photo depicting alleged stickers from unreleased Silicone iPhone cases originating from Apple's international distribution center in Ireland. The photo shows three stickers with the...

Apple Releases iOS 14.0.1 With Fix for Bug That Resets Default Apps After Rebooting

Thursday September 24, 2020 10:12 am PDT by
Apple today released iOS 14.0.1, the first update to the iOS 14 operating system that was released on September 16. Today's update is a bug fix update addressing issues that weren't able to be fixed in the initial iOS 14 launch. The iOS 14.0.1 update is available on all eligible devices over-the-air in the Settings app. To access the new software, go to Settings > General > Software Update. ...

Apple Emphasizes That Solo Loop May Increase in Length Over Time, Updates Sizing Guide With More Specific Instructions

Wednesday September 23, 2020 8:26 am PDT by
Apple on Tuesday updated one of its support documents to emphasize that the new silicone rubber Solo Loop for the Apple Watch may increase in length over time, as mentioned in fine print at the bottom of the Solo Loop product page. Apple has also updated its printable Solo Loop sizing guide with more specific instructions, as noted by 9to5Mac's Michael Steeber. The guide now advises users to ...

iOS 14 Widgets Offer iPhone Users Creative Home Screen Ideas

Sunday September 20, 2020 8:43 pm PDT by
Updated on September 22nd with hands on video. In iOS 14, Apple introduced ‌the concept of Home Screen‌ widgets, which provide information from apps at a glance. Widgets can be pinned to the Home Screen in various spots and sizes, allowing for many different layouts. Despite the relative lack of...

Kuo: Mini-LED Displays to Debut in Apple's Next iPad Pro

Tuesday September 22, 2020 11:45 pm PDT by
Following his report earlier this week indicating that Apple will be accelerating adoption of mini-LED displays in its iPad and Mac notebook lineups thanks to better than expected development from potential secondary supplier Sanan Optoelectronics, analyst Ming-Chi has released a new report today sharing a bit more perspective on the mini-LED display market as it relates to Apple. Kuo says...