| O2 | O2 was a UK-based telecom operator that briefly ventured into the mobile phone manufacturing space. |
O2 XDA Serra
The O2 XDA Serra, with its robust build, full QWERTY keyboard, and Windows Mobile 6.1 Professional, was designed as a business tool in the pre-iPhone era, emphasizing...
O2 XDA Guide
In its day, the O2 XDA Guide was a competent device appealing to business users and early smartphone adopters. While it does not hold up to modern devices in terms of...
O2 XDA Zest
The O2 XDA Zest encapsulates a pivotal moment in mobile phone technology, balancing emerging smartphone functionalities with the limitations of the era. Its design, while...
O2 XDA Stellar
The XDA Stellar was powered by a removable 1350 mAh Li-Ion battery, offering stand-by times up to 365 hours and talk times up to 5 hours. Such battery life was...
O2 XDA Orbit II
The O2 XDA Orbit II represents a snapshot of an era where phones started to blend communication, navigation, and office productivity. Though it is discontinued and...
O2 XDA Comet
Powered by a removable Li-Ion battery, the device offered a standby time of up to 200 hours and a talk time of up to 6 hours. These figures were rather typical and...
O2 XDA Nova
The O2 XDA Nova is a classic example of mid-2000s smartphone technology. While it lacks the advanced features and specifications of today’s devices, it served its purpose...
O2 XDA Terra
The O2 XDA Terra stands as a device representative of its time, with a focus on productivity and essential communication. Its design, operating system, and feature set...
O2 XDA Argon
Although the O2 XDA Argon is long discontinued, it remains a noteworthy device from the era of early smartphones. Catering to professionals and tech enthusiasts of its...
O2 XDA Star
The phone was fitted with a removable Li-Ion 1120 mAh battery, which promised standby time of up to 250 hours and talk time of up to 5 hours—adequate for moderate usage...