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Kyocera DuraCore (Sprint) review: Kyocera DuraCore (Sprint)

Kyocera DuraCore (Sprint)

Jessica Dolcourt Senior Director, Commerce & Content Operations
Jessica Dolcourt is a passionate content strategist and veteran leader of CNET coverage. As Senior Director of Commerce & Content Operations, she leads a number of teams, including Commerce, How-To and Performance Optimization. Her CNET career began in 2006, testing desktop and mobile software for Download.com and CNET, including the first iPhone and Android apps and operating systems. She continued to review, report on and write a wide range of commentary and analysis on all things phones, with an emphasis on iPhone and Samsung. Jessica was one of the first people in the world to test, review and report on foldable phones and 5G wireless speeds. Jessica began leading CNET's How-To section for tips and FAQs in 2019, guiding coverage of topics ranging from personal finance to phones and home. She holds an MA with Distinction from the University of Warwick (UK).
Expertise Content strategy, team leadership, audience engagement, iPhone, Samsung, Android, iOS, tips and FAQs.
Jessica Dolcourt
3 min read

6.3

Kyocera DuraCore (Sprint)

The Good

The <b>Kyocera DuraCore</b> is Sprint's third push-to-talk handset on its Direct Connect network. It's certified to military standards for dust, shock, and vibration.

The Bad

The DuraCore is simpler than the DuraMax by design, but that doesn't mean we don't miss the camera and expandable memory. Also, it isn't specified for submersion.

The Bottom Line

Up to military specifications, the durable Kyocera DuraCore runs on Sprint's fast Direct Connect push-to-talk network, but those who prefer a camera and a phone they can dunk in water will want the DuraMax.

Sprint has been planning the phaseout of the IDEN push-to-talk network that it acquired with its Nextel purchase for a long time, and the Kyocera DuraCore is the third handset to ride on the carrier's faster Direct Connect network, coming just after the Kyocera DuraMax and the Motorola Admiral. Like the DuraMax, the DuraCore is functional and easy to keep a grip on, encased in hard rubber. The DuraCore is the more minimalist of the two, however. It lacks the more ambitious DuraMax's camera, microSD card slot, and ability to withstand a 30-minute dunking. The DuraCore costs $69.99 with a new, two-year service agreement.

Editors' note: Due to their similarity, this review focuses on differences between the DuraCore and DuraMax phones. For more details, please see the DuraMax review.


The DuraMax, left, is larger than the DuraCore, right, and has more features, like a camera.

Black and covered in Kyocera's thick, strategically ribbed, rubberized Dura-Grip material, the DuraCore is rugged by design, and its flip-up form will appeal to longtime Nextel users. Certified Military Standard 810G, the DuraCore is resistant to shock, dust, and vibration. At 3.9 inches tall by 2 inches wide by 0.9 inch thick, it's chunky, but that's what you want for use on delivery routes and construction sites, for example, and the 4.4-ounce weight isn't too heavy.

A silver-colored plate incorporates the speaker grille on the front of the phone, right above the 1-inch monochrome outer display, with its 96x64-pixel resolution. The display shows the time, battery strength, signal meter, and missed messages and alerts.

In keeping with the theme of durability and shielding the delicate internals from the rough elements, the DuraCore's external features are either rubberized buttons that rise from the surface for easy pressing, or ports secured with flaps. The 2.5mm headset jack is on the right spine, and the volume rocker, PTT button, and Micro-USB charging port are on the left spine. Up top are buttons for speaker and for pulling up a calling list. On the back of the phone, the battery cover is secured with a sliding lock. Unlike on the DuraMax, there is no microSD card slot for expandable memory.

Flip the DuraCore open on its thick hinge to reveal the 2-inch QVGA TFT display with 240x320-pixel resolution. Below the screen are large, bubbly buttons for soft-key navigation, Web, Back, OK, Talk, Speaker, and End/Power. The buttons surround a large, silver, circular directional pad.


The chunky DuraCore has external buttons for turning on speakerphone and viewing recent calls from the closed position.

Below the screen, which looked bright enough and clear enough for most uses, are the larger alphanumeric keypad buttons. While also bubbly and rising above the surface of the phone, their smooth, rounded edges might not provide quite as much of a distinctive edge for thickly gloved hands. For my bare hands, however, they worked perfectly.

Performance
I tested the Kyocera DuraCore in San Francisco using Sprint's service, and call quality was OK. Volume was good on my end, but there was a faint background drone that became increasingly distracting the more aware of it I became. There was also white noise accompanying the speaker's voice, and the voice quality was sometimes a little uneven, almost like the voice shallowly cut in and out. On the other end of the line, callers reported excellent quality, with a pleasantly loud volume and no noticeable distortion, although they could tell I was on a cell phone.

Kyocera DuraCore (Sprint) call quality sample Listen now: "="">

Speakerphone volume was good when I held the phone at waist level, though the background fuzziness on my end grew louder, and the voice was muffled. In a quiet room, the conversation was intelligible, but if any amount of noise was introduced, speakerphone clarity became a problem. On their end, callers said volume was a little low, but still very clear, and the typical room echo was minimal.

The DuraCore has a rated battery life of up to 8.1 hours of talk time. The Federal Communications Commission's radiation tests measured a digital SAR of 0.72 watt per kilogram.

Conclusion
It's durable, resistant to many elements other than water, and extremely straightforward to use on Sprint's so-far reliable Direct Connect network. This is the type of PTT phone that a company would buy its employees, or that a few outdoorsy folks might like for just making calls. However, with the fuller-featured and even tougher DuraMax also available for Sprint, it's hard to recommend the DuraCore to anyone other than budget-conscious buyers who don't need or want a camera, a microSD card, or dunkability.

Editors' note: This review was updated to mention Sprint's second push-to-talk phone, the Motorola Admiral. It has also been updated to add rated battery life and the FCC's digital SAR measurement.

6.3

Kyocera DuraCore (Sprint)

Score Breakdown

Design 7Features 5Performance 7