Samsung Galaxy S21 Ultra 5G Car Phone Holder for Otterbox Defender Case DIY

$189.00 (Incl. GST) AL-STK SAM S21 ULTRA OD DIY
 

This Strike Alpha Samsung Galaxy S21 Ultra Car Phone Holder DIY allows you to mount your Samsung S21 Ultra 5G with your OtterBox Defender case still attached. The Samsung S21 Ultra car mount for OtterBox Defender case securely holds and protects your Galaxy S21 Ultra whilst you travel. Drive with ease and access your maps, listen to your favourite music with this Galaxy S21 Ultra car dock. Slide in your Samsung S21 Ultra and power it up with the built-in fast charging capability of this phone cradle. This S21 Ultra car dock for OtterBox Defender case also has an antenna connector for boosting mobile signal, perfect for low reception areas.


  • Boost your mobile signal! This Strike Alpha Samsung Galaxy S21 Ultra Phone Mount for OtterBox Defender case DIY has an internal passive antenna designed to improve your mobile signal when you connect it to a reputable external antenna through the built-in FME male connector.
  • It includes a windscreen mount. Other mounting options are also available for purchase.
  • This Alpha Cradle car holder is a DIY install pack. As an overview, you just have to attach the cradle to the windscreen mount provided and plug the supplied car charger into the vehicle's cigarette lighter charger. After that, you are free to maximize its usage.
  • Shop for Strike Antennas to help boost your mobile reception!
  • This product is suitable to use with the Samsung Galaxy S21 Ultra 5G OtterBox Defender case, however, the OtterBox case is not included in the package.
  • Compatible with Samsung Fast Charger with adaptive 5V or 9V output.
  • Can work with any Bluetooth car kits.
For Enterprise customers, email [email protected] to discuss quantity pricing.


  • Plug ‘N Play - With Alpha Cradle’s superior design, you can simply select the new car cradle component that suits your new mobile phone and click it onto your existing phone mount. There’s no need to re-install.
  • Data pass through available via inbuilt charging cable.
  • Added safety - The Strike Alpha Samsung Galaxy S21 Ultra Car Dock for OtterBox Defender case DIY can be charged using 12/24 volt charging with voltage spike protection.
  • The internal multiband passive antenna booster of this car phone holder is specifically tuned to 3G/4G networks.
  • Designed, engineered and made in Australia for Australian conditions.
  • 3 Year Unlimited KM warranty.
  • Patented design exclusive for Strike.
  • International shipping available
  • If you're looking for more information, you can check out Strike's complete list of Strike Alpha Cradles.
  • View Strike’s complete product line to find more car accessories!
  • Want to know more? Drop Strike a line on 1300 792 044 (+61 7 3139 1276) or to contact support email [email protected] or login to "Your Account" and click on "Contact Support".
  • Strike Alpha Car Cradle Cell Phone Holder
  • Windscreen mount
  • Cigarette lighter power supply