K4 Boost Battery Strap

for Quest 3/3S
Sale price$69.99

Tax excluded. Shipping calculated at checkout


  • for Quest 3/3S
  • Extended Play: Keep the MR sessions going with 3 extra hours of battery life. Optimized for peak performance based on your gaming needs.
  • Dual Fast Charging, Twice the Speed: Simultaneously charge the K4 Boost and your Quest 3S/3 with the DualBoost Power system. Fully recharge both in just 2.5 hours with a 45W adapter, delivering 25W power to your Quest 3S/3 while charging the internal battery.
  • Comfort and Balance: Ergonomically designed rear headrest with thickened padding reduces facial pressure, while enhanced counterweight eases strain on your head and neck.
  • Safe and Reliable: The premium-certified batteries and system are credited with multiple protections, including essential UL, EN, and FCC certifications. Every material is rigorously tested in TÜV labs for safety and durability.
  • Easy Wear and Quick Adjustment: The 52° damping hinge allows easy on and off, while the quick adjustment knob ensures a perfect fit.
KIWI design K4 Boost Battery Strap for Meta Quest 3S 01
KIWI design K4 Boost Battery Strap for Meta Quest 3S 02
KIWI design K4 Boost Battery Strap for Meta Quest 3S 03
KIWI design K4 Boost Battery Strap for Meta Quest 3S 04
KIWI design K4 Boost Battery Strap for Meta Quest 3S 05
KIWI design K4 Boost Battery Strap for Meta Quest 3S 06
KIWI design K4 Boost Battery Strap for Meta Quest 3S 07

FAQ

If you have any other questions, feel free to contact our customer service team. We will do our best to assist you!

Our customer support is available Monday to Friday: 9am-6:30pm.

Customer Reviews

Based on 62 reviews
73%
(45)
19%
(12)
2%
(1)
2%
(1)
5%
(3)
J
Jacob Thate

K4 Boost Battery Strap

I
Isaac Merino Blanco

K4 Boost Battery Strap

D
DGC Kiwi 17
Very good addition to the Meta Quest 3 !

Love the fact that it really does extend gameplay by quite a bit. Seem pretty decent build quality as well and is easy to put together. It's also fairly comfortable, but loses one star because it's not as stable as the original strap that comes with the Meta Quest. Any I've tried umpteen combinations to get the fit as good as possible. I only bought the Kiwi because I'm a Kiwi myself (yeah I know, I'm a bit sad given that it's not even an NZ product), but I'm happy with my purchase. I went and bought Kiwi controller grips based purely on the quality of the headset.

T
Tim Tozer
Great fit but drain battery quickly

I am give it 4 stars as it is comfortable, easy to take headset on and off. The one bad thing I have found that it continues to charge the headset battery all the time even when in sleep or off. Which just drain the strap battery. I find it best to keep it unplugged until headset battery get low and the. Plug in the strap to charge headset.

E
Ethan K
Super comfy, enormous battery improvement, and an unbeatable price.

Considering it's half the price of the competition, this is one beastly headstraps replacement. Very comfortable for extended sessions, the extra Q3-compatible battery makes those sessions last even longer.

I'm super impressed.