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

oneMadRssn Avatar
64 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)
Analog Kid Avatar
64 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)
paul4339 Avatar
64 months ago
I don't quite get why they used micro-USB.
Score: 1 Votes (Like | Disagree)

Related Stories

youtube apple tv

YouTube Discontinuing 3rd-Generation Apple TV App, AirPlay Still Available

Wednesday February 3, 2021 3:09 pm PST by
YouTube is planning to stop supporting its YouTube app on the third-generation Apple TV models, where YouTube has long been available as a channel option. A 9to5Mac reader received a message about the upcoming app discontinuation, which is set to take place in March.Starting early March, the YouTube app will no longer be available on Apple TV (3rd generation). You can still watch YouTube on...
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
General Apps Messages

Android iMessage Competitor Puts Pressure on Apple

Friday July 30, 2021 3:15 am PDT by
Google and the three major U.S. carriers, including Verizon, AT&T, and T-Mobile, will all support a new communications protocol on Android smartphones starting in 2022, a move that puts pressure on Apple to adopt a new cross-platform messaging standard and may present a challenge to iMessage. Verizon recently announced that it is planning to adopt Messages by Google as its default messaging...
os x mountain lion macs 16x9 2

Apple Makes OS X Lion and Mountain Lion Free to Download

Wednesday June 30, 2021 12:19 pm PDT by
Apple recently dropped the $19.99 fee for OS X Lion and Mountain Lion, making the older Mac updates free to download, reports Macworld. Apple has kept OS X 10.7 Lion and OS X 10.8 Mountain Lion available for customers who have machines limited to the older software, but until recently, Apple was charging $19.99 to get download codes for the updates. As of last week, these updates no...
bluetti eb70 main

MacRumors Giveaway: Win a Bluetti EB70 Portable Power Station and 200W Solar Panel

Friday September 3, 2021 11:13 am PDT by
For this week's giveaway, we've teamed up with MAXOAK to offer MacRumors readers a chance to win a Bluetti portable power station and an accompanying solar panel. Bluetti makes a range of portable power station options that are useful for camping, emergencies, power outages, off-grid living, and similar situations. The Bluetti EB70 is a solid middle of the road option that offers 716Wh and...
apple privacy

Apple Publishes FAQ to Address Concerns About CSAM Detection and Messages Scanning

Monday August 9, 2021 1:50 am PDT by
Apple has published a FAQ titled "Expanded Protections for Children" which aims to allay users' privacy concerns about the new CSAM detection in iCloud Photos and communication safety for Messages features that the company announced last week. "Since we announced these features, many stakeholders including privacy organizations and child safety organizations have expressed their support of...
General Spotify Feature

Spotify Pauses Plans to Add AirPlay 2 Support to iOS App [Update: Spotify Clarifies]

Friday August 6, 2021 9:07 am PDT by
See update at bottom of article Spotify this week confirmed that its plans to add AirPlay 2 support to its iOS app have been placed on indefinite hiatus. In an online discussion forum post, a Spotify representative said the streaming music service had been working on supporting AirPlay 2, but the company has paused the efforts "for now" due to "audio driver compatibility issues." The...
iphone 13 teal with text

Apple Begins Preparation for iPhone 13 Production Ahead of Fall Launch

Monday June 28, 2021 3:29 am PDT by
We're just a few months away from when Apple is expected to reveal the 2021 iPhone, dubbed the "iPhone 13." In preparation for its launch, it has been pulling in shipments of different components needed to produce the new iPhones, according to a report from DigiTimes. In years past, Apple released its latest iPhone lineup, alongside a new Apple Watch, during a September event at Apple Park....
General Spotify Feature

Spotify Partners With Delta to Provide Free In-Flight Music and Podcasts Service

Thursday September 2, 2021 12:59 am PDT by
Spotify has announced a new partnership with Delta that will see the streaming service take over the "audio" section of Delta's in-flight seatback entertainment, making select playlists and podcasts freely available to all passengers. You are now free to roam about the cabin—and get the music and podcasts you love at 30,000 feet. Beginning today, we're taking off in a new partnership with...
iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived in October 2020 in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone...