1. Progress: successfully lose weight about 1/3.

The overall dimensions of tx55 are 92.9mm x 54.4mm x13.2mm.

-the overall dimension of tx100 is 97.0mm x 58.5mm x17.8mm.

2. Progress: the optical zoom of the lens is increased to 5 times.

-lens specification of tx100: 25 -TX 100 mm f3.5-4.64x optical zoom.

-TX55 lens specification: 26-130mm f 3.5-4.8 5x optical zoom.

3. Progress: richer photo shooting modes

-TX 100 shooting mode: skin beautifying, background blurring, backlight correction HDR, etc.

-TX55 shooting mode: HDR painting, rich tone black and white, miniature landscape, toy camera, popular color, local color and soft bright color are added on the basis of TX 100.

4. Rich: 6 body colors are available.

-Body colors of TX100: red, gold, silver and black.

-TX55 Body color: red, gold, silver, black, purple and brown.

5. compromise: change to a mini memory card.

-TX 100 adopts SD/SDHC or memory stick PRO Duo memory card.

-TX55 adopts micro SD/SDHC or memory stick micro memory card.

6. Backward: Full HD short film shooting with progressive scanning is not supported.

-the highest specification of tx100 is 1920 x 1080 50p.

The highest specification of TX55 is 1920 x 1080 50i.

7. Finally, the official quotation difference between the two products is 4 1 yuan.

-TX 100 official website sells for 2458 yuan (including a 4GB memory stick in the promotion).

The price of TX55 in official website is 2499 yuan (including a 4GB memory chip in the pre-sale promotion).

As long as you don't care much about 1080p progressive scanning full HD short film shooting, it should be a wise choice to choose the new flagship TX55.