A quick heads-up for those that missed it the first time around -- the official Samsung Galaxy S4 wireless charging kit is now back in stock at ShopAndroid.com. The kit, which is based on the Qi wireless charging standard, includes the official charging pad and charging back for Samsung's latest smartphone. After selling out last week, it's once again available to buy from ShopAndroid for $89.95, which is 10 percent off the list price.

If you're undecided, you can check out our full write-up on the GS4 wireless charging kit, which includes photos, video and a thickness comparison versus the standard back cover.

More: Buy the Samsung Galaxy S4 wireless charging kit ($89.95)​