V3m
V3m is a CDMA version of the Razr. As an upgrade to the V3c, it features a microSD card slot for up to 2 GB of memory expansion, a longer lasting battery, and 40MB of internal memory. The V3m came in silver, pink and red although the original release as well as models that used to be available on the Sprint CDMA network featured the gunmetal gray color of the V3c. For a limited time Alltel and US Cellular offered a Fire Red color. This model is not available in the UK as they use GSM, not CDMA, although the V3x is on sale there.
Due to many Sprint customers complaining about less than expected battery life, Motorola offered free high-capacity batteries to Sprint customers who contact Motorola's customer service line with battery life issues.
Read more about this topic: Motorola Razr