TI-84 Plus
Texas Instruments

Net Price:$HKD920

Weight: 0.82Kg

An enhanced version of the TI-83 Plus, the new TI-84 Plus offers a built-in USB port, 3x the memory of the TI-83 Plus, many preloaded Apps, an improved display, and is 100% keystroke-for-keystroke compatible with the TI-83 Plus.
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TI-84 Plus Silver Edition
Texas Instruments

Net Price:$HKD1200

Weight: 1Kg

An upgrade version of TI-84 Plus
?30 preloaded Handheld Software Applications (Apps), including Cabri® Jr. and Periodic Table
?9x the memory of the TI-83 Plus for storing up to 94 Apps
?2.5x the speed of the TI-83 Plus
?Interchangeable faceplates (available separately)
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TI-89 Titanium
Texas Instruments

Net Price:$HKD1250

Weight: 0.76Kg

The most advanced TI Graphing Handheld. Advanced Graphing for Calculus, AP courses and University studies.
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Voyage 200
Texas Instruments

Net Price:$HKD1680

Weight: 1.1Kg

Personal Learning Tool that combines the functionality of the TI-92 Plus with more memory, a clock, and an icon desktop for easy navigation
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