Your smartphone isn't just an expensive piece of electronic gadgetry; it's probably likely an extension of your life. With that in mind, we've rounded up some of the best smartphone accessories to help you protect your investment. Get a case for your Galaxy S4 for $5, save 90% on two or more XtremeGuard screen protectors, and get $15 off a FreedomPop 4G hotspot bundle. Samsung Flip Folio Case for Samsung Galaxy S4 Store: AT&T Wireless Price: $5 with free shipping Lowest By: $6 Is It Worth It?: Putting a case on your Galaxy S4 is smart choice, but the added bulk can be a pain. Opt for this Editors' Choice Samsung flip cover in White to get the protection you need without a ton of added weight. The slim design includes a back piece to replace the S4's standard battery cover. XtremeGuard Coupon Store: XtremeGuard Discount: 90% off 2 or more protectors via coupon code "90off2" Shipping: Free shipping Is It Worth It?: If nothing else, you should always cover your phone with a screen protector. Offering the highest percent-off discount we've ever seen from XtremeGuard, coupon code "90off2" takes almost 100% off any two or more screen or full-body protectors. Better yet, all orders score free shipping, making this deal a clear Editors' Choice pick. All XtremeGuard protectors feature puncture-resistant film that can purportedly "heal" itself from scratches. iOttie One Touch XL Universal Car Mount Store: Meritline Price: $13.50 via coupon code "MLCQ20XN" with free shipping Lowest By: $6 Is It Worth It?: Keep your phone from flying around the car at every stoplight with this mount. No need to worry about compatibility either, as this universal stand will fit most phones up to 3.5" wide. It features an "extra large" suction cup to secure the mount in place, and the arm can be rotated 360 degrees for ultimate flexibility, which is useful for both the passenger and driver. Philips Docking System for iPod & iPhone Store: Best Buy Price: $49.99 with free shipping Lowest By: $30 Is It Worth It?: If you're still rocking an iPhone 4S (or earlier model), check out this retro-chic Philips docking system for iPhone and iPod. Sporting a 30-pin dock, two alarms, a digital FM tuner, and 3.5mm input, this Editors' Choice docking system also boasts Bass Reflex Speaker System technology for deep, powerful audio. Refurbished Freedom Spot Photon Platinum 4G Hotspot Bundle Store: FreedomPop Price: $24.99 with free shipping Lowest By: $15 Is It Worth It?: If your phone's current data plan is sending you into the red, check out this bundle from FreedomPop. For $25, you'll score a refurbished Freedom Spot Photon Platinum 4G Hotspot bundled with a 1-month trial of FreedomPop's 2GB 4G Internet plan, an extra 1GB of data, and a Power Bank Mobile Battery Extender. That's a $15 savings on the hotspot alone. The Photon hotspot can support up to eight WiFi devices at once. Note: No warranty information is provided. The data plan trial is free for the first month only; additional months will be billed at $17.99 per month. It can be cancelled at any time.