both have the same screen size that is 3.2 inch, but the Torch 9810 has the better resolution of 480 x 640 pixels, while the Torch 9800 only has a resolution of 360 x 480 pixels. Both are also equipped with an optical trackpad.
For business performance, the BlackBerry Torch 9810 comes with support for processor twice as fast as the 1.2GHz with 768MB RAM support. BlackBerry Torch 9800 powered by a 624MHz processor with 512MB of RAM support. TBlackBerry Torch 9800 has an internal memory capacity of 4Gb microSD slot with support up to 32GB, and successors BlackBerry Torch 9810 comes with a memory capacity that is larger internal 8GB microSD slot with support up to 32GB.
For business connectivity, the BlackBerry Torch 9800 and BlackBerry Torch 9810, both present with features 3G support with HSDPA, WiFi, and Bluetooth 2.1. Torch and BlackBerry 9810 comes with support for features Near Field Communications (NFC).
BlackBerry Torch 9810 comes with the newest operating system ie, the BlackBerry OS 7, while the BlackBerry 9800 Torch is the first BlackBerry smartphone using BlackBerry OS 6. BlackBerry Torch 9800 and 9810 are both equipped with a 5 megapixel camera with additional features like Geo-tagging, continuous auto-focus and image stabilization.
For power, the BlackBerry Torch 9800 and the Torch 9810, both equipped with a Li-Ion 1300mAh. BlackBerry Torch 9800 currently has a price tag of about $ 450, probably BlackBerry Torch 9810 will be priced above $ 500. BlackBerry Torch 9810 offers better hardware specifications with newer operating systems. So better you wait longer to get the latest BlackBerry Torch 9810.