Sonim XP1 - yellow (unlocked) review: Sonim XP1 - yellow (unlocked)

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CNET Editors' Rating

3 stars Good
  • Overall: 6.7
  • Design: 7.0
  • Features: 6.0
  • Performance: 6.0
Review Date:
Updated on:

The Good The Sonim XP1 has an extremely durable design. It's easy to use and has good call quality.

The Bad The Sonim XP1 navigation controls could be a bit more tactile. Also, speakerphone calls were somewhat muffled.

The Bottom Line It may not be pretty, but the Sonim XP1 is a rugged GSM cell phone that's built to last. It offers good call quality, too.

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In the age of cell phones as fashion accessories, the demand for rugged, durable handsets has remained decidedly small. But even though they constitute a niche market, fans of burly models are particularly vocal. For much of its life Nextel has mastered this sector well, with Sanyo and Casio contributing the occasional CDMA handset. Thrill-seeking GSM users, however, haven't been as fortunate. Though Nokia offered the Nokia 5100 and 5140 a while back, the selection of sturdy GSM handsets has remained limited. That is, until now. Sonim Technologies, a Silicon Valley-based company released the Sonim XP1 last year. Billed as the "world's toughest phone," the XP1 is indeed built like a tank. A hard shell and rubberized sidings protect the XP1 from bruises, and it meets military specifications for water, dust, salt, fog, humidity, transport shock, and thermal shock. No, it may not be pretty but it is built to last.

The XP1's feature list is pretty short; you won't find a camera, music, or Bluetooth, but you will find a vivid display, messaging, and a simple interface. As the handset is optimized for the European market (thank Sonim for remembering your home country), the XP1 lacks support for one North American band (GSM 850). Using T-Mobile's network we got decent call quality in San Francisco but with either T-Mobile or AT&T, reception will vary outside of rural areas. The XP1 is available as an unlocked model with Expansys for $359.

Design
We can confirm that the XP1 won't win any beauty contests. It's big and hefty (4.45 inches by 1.97 inches by 0.87 inch, and 4.52 ounces) with a boxy profile and a gaudy yellow-and-black color scheme (a more subdued gray-and-black version is available). But don't count its ugliness against it as that's really the whole point of the XP1. Rather than try to be stylish and sexy, it prides itself on being a brick of a phone that can take a lot of punishment. Indeed, we threw it around a few times without any problems. A YouTube video shows the Sonim XP1 being thrown from a building and run over by several cars without incident; it finally breaks after being quashed by a tractor. Unfortunately, we couldn't repeat those tests--we have to return it intact or we're out $359--but it certainly was one of the sturdiest phone's we've ever seen. And even with all that heft, it still has a comfortable feel in the hand and slips comfortably into all but the smallest pockets. It's worth noting that the XP1 is water-resistant and not waterproof. It won't survive a dunk in the water like the G'zOne Type-S, but it will survive quite a splash.


The XP1 is a tough and strong phone.

While many of Nextel's handsets have tiny, low-resolution displays, the XP1 has a bright, clear display that's easy on the eyes. It measures a spacious 1.75 inches (128x160 pixels) and supports 65,000 colors. The menu interface is simple and easy to use, and graphics looked reasonably sharp. You can change the backlighting time but no other options are customizable.

The navigation array is spacious and well-designed. The primary controls are four directional keys surrounding a central OK button. The keys are large and easy to distinguish but we wish they were raised just a bit more above the surface of the phone. Still, they're tactile enough, and we had no issues with misdials. The directional buttons double as shortcuts to the phone book, the messaging menu, the calls list, and the Web browser. Below the array find two soft keys, the Talk and End/power buttons, and the numeric keypad. All keys are slightly beveled, which makes it easy to dial by feel. They could have a brighter backlighting, however.


The ports on the bottom of the XP1 are covered by a rubber flap.

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Where to Buy

Sonim XP1 - yellow (unlocked)

Part Number: XP1YLWULK
Pricing is currently unavailable.

Quick Specifications See All

  • Technology GSM
  • Service Provider Unlocked
  • Weight 4.5 oz