The Lumia 830 is a Nokia-branded upper mid-range Windows Phone by Microsoft Mobile expected to launch in September or October 2014. The phone is currently in rumor status with the internal codename 'Tesla', although photos of the phone have come forward, including its recent certification through the Brazilian regulatory agency Anatel.
The Lumia 830 is the 2014 replacement for the Lumia 820, which was announced in late 2012. The Lumia 830 is an upper mid-range phone, bringing some premium features to a non-flagship device.
The Lumia 830 is likely to launch with Windows Phone 8.1 Update 1, along with 'Lumia Debian Red', the codename for new firmware replacing Lumia Cyan.
Rumored specifications for the Lumia 830 include a high-megapixel PureView camera featuring Zeiss optics, optical-image stabilization, and excellent low-light performance. The display may be in the 4.5 to 4.7-inch range, with the resolution unknown. The Lumia 830 has a micro SD card slot, letting users install apps, games, documents, and media to the expanded memory.
The Lumia 830's design reflects the Lumia 930, its flagship sibling released in mid-2014. The Lumia 830 is squarer than previous Lumias with a rounded back. However, the Lumia 830 is considerably thinner than the Lumia 930 with the following dimensions: 139.4 mm x 70.7 mm x 8.5 mm.
The Lumia 830 uses the Nokia brand for marketing, although it made by Microsoft Mobile.
AT&T, T-Mobile, and Verizon in the US are allegedly launching either the Lumia 830 or carrier-specific variants. Global versions of the Lumia 830 are also expected.
Announcements for the Lumia 730 and Lumia 830 are to take place September 4, 2014 in Berlin, during a pre-IFA Microsoft press conference.