KIWI design K4 Boost Battery Head Strap for Meta Quest 3/3S | Adjustable VR Headband Accessories with Dual Charge, Extend Playtime & Reduce Facial Stress for Kids and Adults
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Availability:
In Stock.
Arrives
Thursday, Jul 30
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Size: K4 Boost Battery Strap
Features
- Extended Playtime with Enhanced Battery: Use the KIWI design battery pack to extend your gameplay time by a maximum of 3 hours. Designed for optimal performance and customized to meet your demands, you can play for longer without worrying about the battery running out. Please note that the environment and manner of use have an impact on battery life. Long-term high-power applications should be avoided.
- Dual Fast Charging: Charge your Quest 3S/3 and K4 Boost twice as quickly. In approximately 2.5 hours, fully recharge using a 45W adapter (not provided). The K4 Boost and HMD both receive a 65% charge in 60 minutes, allowing for 2.5 hours of playback.
- Tighten the Head Strap for a Secure Fit: The front and back of the head strap are balanced by the lightweight battery pack, which significantly lessens the weight on your head. To properly fit the virtual reality headset to your head and play games without worrying about discomfort, merely crank the rear knob or pull the adjustment VR accessories.
- Comfortable and Balanced Design: A balanced weight design eases strain on your head and neck, while the thicker cushioning and bigger back support lessen facial pressure. To provide a more comfortable fit, adjust the wearing angle up or down until it strikes the ideal balance between front and back weight.
- Safe and Reliable VR Headband: Various safety measures, including NTC and UL credentials, and high-quality components were used in its construction. With its 52-degree damping hinge and quick-adjust knobs, it's comfortable to wear and share with loved ones.
- Unique gift for Kids: A great gift idea for boys & girls, perfect for birthdays, Christmas, or any special event.
Description
Proud Partner of Meta’s ‘Made for Meta’ Program. Since 2015, KIWI design has been at the forefront of the VR world. With over 100 patents and a strong product lineup, we proudly collaborate with Meta and engage in the MFM program. Your feedback drives us forward! We specialize in creating electrifying VR accessories that enhance user experiences worldwide, prioritizing top-tier quality and sleek design. K4 Flex Head Strap K4 Duo Audio Head Strap K4 Comfort Head Stap H4 Boost Head Strap Link Cable 16FT Face Pad for Quest 3 G4 Pro Controller Grips
Brand: KIWI design
Color: White and black
Special Feature: Adjustable Headband
Connectivity Technology: USB
Included Components: Headstrap
Compatible Devices: Meta Quest 3/3S
Specific Uses For Product: Gaming
Age Range (Description): Teens, Adults
Operating System: Oculus Integration
Field Of View: 52 degrees
Additional Features: Adjustable Headband
Connectivity Technology: USB
Compatible Devices: Meta Quest 3/3S
Specific Uses For Product: Gaming
Operating System: Oculus Integration
Field Of View: 52 degrees
Connector Type: USB
Sensor Technology: inside-out tracking
Battery Average Life: 3 hours
Display Maximum Resolution: 1832 x 1920 per eye
Platform: Meta Quest
Resolution: 1832 x 1920 per eye
Display Type: LCD
Controller Type: Knob Control
Battery Capacity: 3 hours
VR Operating Platform Compatibility: Standalone
Display Resolution Maximum: 1832 x 1920 per eye
Brand: KIWI design
Built-In Media: Headstrap
Age Range Description: Teens, Adults
Model Number: QS02B
UPC: 850052498382
Manufacturer: Shenzhen Hongjiantou Technology Co., Ltd.
Unit Count: 1 Count
Mfr Part Number: QS02B
Warranty Description: 2 year
Item Weight: 12.8 ounces
Color: White and black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: K4 Boost Battery Strap
I've tried this strap and the bobo vr s3 pro. This one fits me more comfortably. I have a very large head. I ended up keeping the k4 boost and giving the bobo vr strap to my son, it fits him much better than it fits me. The battery life seems sufficient with this strap and it is easy to charge the strap and the headset together. For best results you will need to buy a 45watt charging brick it is not included with the strap and the brick supplied with the headset is only 25 watts. The one conplaint I have is if you leave it plugged into the quest when you arentnusing it, it will drain the battery in the strap a little even if the headset is fully charged. There is no power button like the bobo s3 has. So you need to unplug it from the headset when the battery amd the headset have reached full charge before storage. Overall im happy woth my purchase. Its loads more comfortable than the stock strap and opens and closes to accommodate any head size.
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Reviewed in the United States on January 24, 2026 by Anthony
Size: K4 Boost Battery Strap
This product is amazing ! May be a little more expensive than other competitors but it’s worth it!! Feels snug , comfortable and light on the head even with the built in battery pack! The life on the headset definitely helps the gameplay session last longer too ! It easily adjusts to the head as well! I have a big head and my fiancee has a much smaller one so it’s easy to adjust and fits us both perfectly ! But Now that my fiancee is getting a meta quest 3 as well I think I’m gonna have to order another one for her ! Unless Kiwi would like to send me a free one for some extra publicity ;) haha!
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Reviewed in the United States on April 8, 2026 by William Lowry
Size: K4 Boost Battery Strap
This is amazing, I bought this a year ago now, and it's amazing, it's a light weight design, it's comfortable, it's got a good battery life, and holds up amazing to playing games and makes it way more comfortable to play, and with the quest 3 lightweight design, having a light weight battery head strap is a game changer, 10 out of 10 would recommend, it's easily adjustable, it took like 2 minutes to setup, it hasn't broke even though I dropped it multiple times, simple to charge and easy to use, definitely should get it if your want a durable and easy to use head strap.
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Reviewed in the United States on March 28, 2026 by QuantumLife
Size: K4 Boost Battery Strap
If you own a Meta Quest and you’re still using the stock headstrap that comes in the box, do yourself a favor and get this Kiwi headband. Seriously. I don’t know why Meta even bothers including that flimsy strap they ship with because it’s honestly terrible in comparison. I put up with the original strap for way too long. It was always sliding around, putting all the weight on my face, and leaving those annoying red marks on my cheeks after every session. I’d have to constantly readjust it and after maybe 30 or 40 minutes my face would start hurting and I’d have to take a break. Not exactly ideal when you’re in the middle of a game or watching something. This Kiwi headband completely changed the experience. The difference was obvious the second I put it on. Instead of all that pressure on my face, the weight is distributed way more evenly and a lot of it shifts to the top and back of my head. It sounds like a small thing but it makes a huge difference when you’re actually wearing it. Installation was pretty straightforward. Took me maybe ten minutes and I’m not particularly handy with this kind of stuff. The instructions were clear enough and everything clicked into place without any issues. No tools needed or anything like that. The build quality feels solid too. It’s got a nice rigid structure that holds its shape but there’s padding in all the right places so it doesn’t dig into your head. The back has this cushioned area that cups the back of your skull and honestly it’s just comfortable. I’ve done two hour sessions now without any discomfort which was absolutely not possible with the stock strap. The adjustment mechanism is also way better. You can dial it in to get the perfect fit and it actually stays put. With the original strap I felt like I was constantly tightening it because it would loosen up while I was playing. This one I adjust it once at the beginning and I’m good to go. My kids use the Quest too and we all have different head sizes, but it’s easy enough to adjust between users that it’s not a hassle to share. Quick twist of the dial and it fits whoever is using it. I honestly can’t believe how much better the Quest is with this headband. It went from something I’d use occasionally because it got uncomfortable to something I actually look forward to putting on. If you’re on the fence about upgrading your strap, just do it. You won’t regret it. One of the best accessories I’ve bought for my Quest hands down.
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Reviewed in the United States on December 31, 2025 by J. Buff
Size: K4 Boost Battery Strap
Very comfortable, the battery is very nice, my only issue is that it feels slightly less secure than other elite straps but still far more secure than the original strap. It’s a little big for my head but I have a small head. Something else nice is by plugging the battery into the headset and plugging the strap into a charger you can charge both at once with one cable. If you are thinking about buying it, go for it, very durable very premium feel. Would buy again
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Reviewed in the United States on December 26, 2025 by ILikeCheezPizza
Size: K4 Boost Battery Strap
This head strap is fantastic. Light, comfortable and well-balanced. Very simple to assemble, and keeps it's shape/sizing once you dial it in. Great purchase, Buy with confidence. That being said....a couple things to be aware of. 1. The battery CONSTANTLY powers the headset, even when it's off. When done charging, unplug the head strap battery cable until you use the headset again. 2. If sitting back in bed, or a high backed chair you can feel the battery pack against the back of your head. It's NOT uncomfortable, but you are aware of it's presence. 3. Threading the top of the head strap thru the center opening (over eyebrows) hole is really tight. Put a piece of masking tape over the end of the Velcro and feed that thru 1st. It pulls thru in seconds. You'll save a ton of aggravation. A great headset. No regrets. Adds an hour or two to your battery life.
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Reviewed in the United States on December 8, 2025 by Katkeeper
Size: K4 Boost Battery Strap
Easy to install on headset, good quality, comfortable to wear, greatky extends battery life.
Reviewed in the United States on May 2, 2026 by PilotWayne
Size: K4 Boost Battery Strap
To date I’ve purchased 2 of these from KIWI design K4 Boost Battery Head Strap, and I’ve been recommending to friends for a while now. This is a great concept, I like the way it’s setup and it’s been working as advertised. I love the way the this head strap fits my head, there’s a nice cushion that cradles and grips the back of my head. I haven’t had any issues with slipping during vigorous play, and It’s easy and quick to adjust and switch between players when necessary. For me, my head gets sweaty, so it’s always nice to have some wet wipes near by to keep everything clean. We all enjoy these KIWI design K4 Boost Battery Head Straps, the longer play and fast charging makes it easy to share fair play time for all.
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Reviewed in the United States on August 23, 2025 by Scott & Wrexham the Dog