Reserve Strap this week released the official design specifications of its battery-charging Apple Watch band accessory, confirming a shipping date for the $249.99 strap to be November 3, 2015. Since its debut in early March, the Reserve Strap has gone through two design iterations, with developers Lane Musgrave and John Arrow attempting to get the look -- and functionality -- just right.

The strap's finalized design comes in with a width of 25mm, a thickness of 3-9mm, and a total weight of 65g. The designers have also ditched the rubber and metallic combination design of the Reserve Strap's second iteration with a uniform Thermoset Elastomer Silicone band that's "as resistant to water as Apple Watch." Coming in both 38mm and 42mm casing sizes, the Reserve Strap promises to fit wrists ranging in size from 130mm to 210mm.

reserve-strap-change

The original Reserve Strap design (left), with the second design (middle) and the final one (right)

The design wasn't the only aspect of the strap to be overhauled, however, with the strap's developers noting a 167 percent increase in battery life, compared to the original design's 125 percent boost. Essentially, if the Reserve Strap is fully charged (via included micro-USB cable), users can expect an additional 30 hours of battery life for their Apple Watch. So, as the company notes on its website, a fully-charged Apple Watch can now expect a grand total battery life of 48 hours if both devices are topped off.

The company goes into the specifics in the new blog post on what users can expect with a day-to-day usage of the Reserve Strap, detailed below. It should be mentioned that the strap's access to the Apple Watch accessory port requires users to first remove the cover to the hidden port before using the Reserve Strap, a process detailed by creators Musgrave and Arrow in a how-to video on their YouTube channel.


How Reserve Strap Works

1. Reserve Strap will connect to the Apple Watch similar to Apple bands. It will slide in laterally then you’ll then push forward a small switch underneath the band to engage the accessory port connection to secure the Reserve Strap on the Watch.

2. At your discretion simply press the power button once to initiate charging. You can use the Watch as normal while it charges.

3. Once top-off charging is complete after 60-75 minutes, press the power button again to save the rest of Reserve Strap for another time. Or if you decide to leave Reserve Strap on, Apple Watch will use the Strap’s power to keep the Apple Watch at 100% power until the Reserve Strap is depleted.

4. Reserve Strap uses a minimal LED indicator to let you know how much charge you have left. When you turn the charge on or plug it in, the LED will glow either red, yellow or green indicating a high, medium, or low charge.

5. Recharging the Reserve Strap and Apple Watch is incredibly easy. You can leave your Strap on the Watch and simply plug it in via micro USB. This will charge the Apple Watch and Reserve Strap at the same time!

The Reserve Strap, which the developers promise fully complies with the Apple Watch Band Design Guidelines and "doesn't violate either AppleCare warranty or Apple Terms & Conditions," can be pre-ordered for $249.99 today from the company's official website. The final design can be purchased in white, grey, or black, its creators noting that only those who pre-ordered are guaranteed a strap on the November 3 launch date.

Related Roundup: Apple Watch Series 6
Buyer's Guide: Apple Watch (Neutral)

Top Rated Comments

ButteryScrollin Avatar
76 months ago

users can expect an additional 30 hours of battery life for their Apple Watch.
and unlimited ugly!
Score: 6 Votes (Like | Disagree)
Z400Racer37 Avatar
76 months ago
Is it just me or is there not really a problem with battery life? I put it on at 7AM and take it off at like 9 or 10 pm an its still at 50%..

Will laugh if apple comes in with its own cheaper version. Just to teach the greedy a thing or two.
... What?
Score: 5 Votes (Like | Disagree)
Eorlas Avatar
76 months ago
People complained incessantly about the lack of 24 hour battery life in the Watch, and now that someone comes up with a solution there's complaint about what you don't like of it?

If Apple made a charge band, you'd be spending more than this. Perhaps this will encourage others to enter this market, and maybe the price will go down eventually.

As for look, it's not gorgeous but it's far from hideous. It's a simple rubber design.

$250 is more than I would spend specifically for that band, but it doesn't mean that the product itself doesn't have that value.

*shrug*
Score: 4 Votes (Like | Disagree)
Waxhead138 Avatar
76 months ago
Apple Watch: Starting at $349.99.

For the measley expense of roughly 70% of that, you can double the battery life!
Score: 4 Votes (Like | Disagree)
lobbyist Avatar
76 months ago
and unlimited ugly!
The final design compared to the original one is like day and night. Very decent looking IMO. Will consider it.

But of course that's just me.
Score: 3 Votes (Like | Disagree)
GFbob Avatar
76 months ago
Is it just me or is there not really a problem with battery life? I put it on at 7AM and take it off at like 9 or 10 pm an its still at 50%..




... What?
I'm not having any issues with battery life either. I take it off around 9 PM, let it charge for an hour and put it back on before bed. I've never run out of battery charge and I've had it on during several 1 hour+ cycling rides (which are supposed to drain the battery doing heart rate checks).
Score: 2 Votes (Like | Disagree)

Top Stories

apple event spring loaded

Apple's 'Spring Loaded' Event Officially Announced for Tuesday, April 20

Tuesday April 13, 2021 9:04 am PDT by
Following an overnight leak by Siri, Apple today officially announced that it will be holding a special "Spring Loaded" event on Tuesday, April 20 at 10:00 a.m. Pacific Time at the Steve Jobs Theater on the Apple Park campus in Cupertino, California. As with all of Apple's 2020 events, the April 2021 event will be a digital-only gathering with no members of the media invited to attend in...
iphone12cameras

Kuo: 2022 iPhones to Feature 48-Megapixel Camera, 8K Video, and 6.1 and 6.7" Sizes With No 5.4" Mini Option

Tuesday April 13, 2021 10:45 pm PDT by
The upcoming 2022 iPhone lineup will feature two 6.1-inch devices and two 6.7-inch devices, with no mini-sized 5.4-inch iPhone, well-respected Apple analyst Ming-Chi Kuo said in a note to investors that was seen by MacRumors. Two of the iPhones will be high-end models and two of the iPhones will be lower-end models, similar to the current iPhone 12 lineup. Apple introduced the 5.4-inch...
macos catalina serial number

Apple Preparing Rollout of New Randomized Product Serial Numbers Ahead of 'Spring Loaded' Event

Wednesday April 14, 2021 2:08 am PDT by
Apple is advising its authorized premium resellers and dealers to prepare for new products with 10 and 12 digital serial numbers, days ahead of when it's expected to reveal a slew of new products. MacRumors previously reported that Apple plans to switch to randomized serial numbers for future products starting in early 2021. The company now seems to be preparing for that roll-out, telling...
apple event particularly innovative article

Gurman: Apple's 'Spring Loaded' Event Won't Feature Anything 'Particularly Innovative'

Thursday April 15, 2021 1:30 am PDT by
Bloomberg's highly-respected Mark Gurman says that he expects nothing "particularly innovative" or "extraordinary" to launch at Apple's "Spring Loaded" event next week, Tuesday, April 20. Gurman made the remarks during an interview for Bloomberg Technology, in which he reaffirmed that Apple will launch a new 11-inch and 12.9-inch iPad Pro, with the higher-end model featuring a brand new...
duanrui iphone13 notch samples

More Leaked iPhone 13 Samples Show Smaller Notch, Repositioned Earpiece and Front Camera

Wednesday April 14, 2021 1:06 am PDT by
Leaker known as "DuanRui" has today shared an image of two iPhone 13 "film samples," which show the same rumored smaller notch design coming to the iPhone 13 series that we've seen from other sources. In past tweets, DuanRui has accurately leaked the correct names of the iPhone 12 models and an iPad Air 4 manual revealing its new design, so there's good reason to think this leak is credible, ...
siir apple event april 20

Siri Reveals Apple Event Planned for Tuesday, April 20

Tuesday April 13, 2021 12:04 am PDT by
Siri has apparently prematurely revealed that Apple plans to hold an event on Tuesday, April 20, where the company is expected to reveal brand new iPad Pro models and possibly its long-awaited AirTags trackers. Subscribe to the MacRumors YouTube channel for more videos. Upon being asked "When is the next Apple Event," Siri is currently responding with, "The special event is on Tuesday, April...
apple event hashflag

Twitter Hashflag for April 20 Apple Event Goes Live

Tuesday April 13, 2021 2:21 pm PDT by
Following the overnight Siri leak and subsequent announcement that Apple will hold a media event on Tuesday, April 20, a new Twitter hashflag has appeared to help provide visibility for the event on the platform. For the last several recent events, Apple has utilized hashflags, which are little icons next to hashtags on Twitter, as a way to market its events. The company first started the...
parallels windows 10 arm mac

Parallels 16.5 Can Virtualize ARM Windows Natively on M1 Macs With Up to 30% Faster Performance

Wednesday April 14, 2021 7:00 am PDT by
Parallels today announced the release of Parallels Desktop 16.5 for Mac with full support for M1 Macs, allowing for the Windows 10 ARM Insider Preview and ARM-based Linux distributions to be run in a virtual machine at native speeds on M1 Macs. Parallels says running a Windows 10 ARM Insider Preview virtual machine natively on an M1 Mac results in up to 30 percent better performance compared ...
iphone 13 pro render rear

iPhone 13 Pro Rumored to Be Thicker and Feature Larger Rear Camera System

Wednesday April 14, 2021 7:07 am PDT by
Tech blog 91Mobiles has obtained 3D renders of what it claims will be the iPhone 13 Pro, revealing a largely familiar design with a few notable changes, including a smaller notch and a significantly larger rear camera system. Following renders of the standard iPhone 13 model from MySmartPrice yesterday, which showed a new diagonal rear camera layout, these renders of the 6.1-inch iPhone 13...
third gen Apple pencil leaked video

Video of Alleged Third-Generation Apple Pencil Leaks Ahead of Apple Event

Friday April 16, 2021 6:13 am PDT by
A video purporting to be of the third-generation Apple Pencil has today been shared online, showing a glossy finish that mirrors previous leaks. New ✏️ ready to 🚢 #AppleEvent @TommyBo50387266 pic.twitter.com/s4RCDwDi5M— 漢尼斯·拉斯納 🇨🇳 (@ileakeer) April 16, 2021 The brief video from Twitter account @ileakeer, spotted by 9to5Mac, shows an Apple Pencil with a glossy finish much like the...