Nintendo DS

• Released- 2004
• Price – $149
• Size – 148.7 mm (5.85 in) x 84.7 mm (3.33 in) x 28.9 mm (1.14 in)
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – 2.4 in × 1.8 in – 256 × 192 pixels
• DS and GBA cart slot. 

Nintendo DS Lite

• Released- 2006
• Price – $130
• Size – 133 mm. long,  73.9mm. tall, 21.5 mm. wide
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – 3.2″ diagonal – 256 x 192 pixels
• DS and GBA cart slot. 

Nintendo DSi

• Released- 2008
• Price – $170
• Size – 137 mm. long, 75 mm. tall, 19 mm. wide
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – 3.25″ diagonal – 256 x 192 pixels
• DS and SD cart slot
• 2 cameras – 640 × 480 pixels

Nintendo DSi XL

• Released- 2010
• Price – $190
• Size – 161 mm. long, 91.4 mm. wide, 21.2 mm. deep
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – 4″ diagonal – 3.36 inches long x 2.52 inches wide – 256 x 192 pixels
• DS and SD cart slot
• 2 cameras – 640 × 480 pixels

Nintendo 3DS

• Released- 2011
• Price – $250
• Size – 135 mm long, 74 mm high,  20.3 mm deep
  (width x height x depth)
• Screens – 2
• Screen specs – Top screen: 3.53″ – 800 x 240 pixels Bottom screen: 3.02″ – 320 x 240 pixels
• DS/3DS and SD cart slot
• 3 cameras – 640 × 480 pixels 
• Added left analog thumb stick

Nintendo 3DS xL

• Released- 2012
• Price – $199
• Size – 156 mm wide x 93 mm high x  22 mm thick
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – Top screen: 4.88″ – 800 x 240 pixels Bottom screen: 4.18″ – 320 x 240 pixels
• Can display stereoscopic 3D effects without the use of 3D glasses.
• DS/3DS and SD cart slot
• 3 cameras – 640 × 480 pixels – Outside cameras can take 3D photos/video
• Added left analog thumb stick

Nintendo 2DS

• Released- 2013
• Price – $129
• Size –  144 mm wide  x 127 mm high x  20.3 mm thick
  (width x height x depth)
• Screens – 1  – Mimics 2 screens with bezels
• Screen specs – 4″ diagonal – 3.36 inches long x 2.52 inches wide – 256 x 192 pixels
• DS and SD cart slot
• 3 cameras – 640 × 480 pixels
• Added left analog thumb stick

Nintendo New 3DS

• Released- 2015
• Price – $199
• Size – 142mm wide x 81 mm high x  21.6 mm thick
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – Top screen: 3.33″ – 800 x 240 pixels Bottom screen: 3.33″ – 320 x 240 pixels
• Can display stereoscopic 3D effects without the use of 3D glasses.
• DS/3DS and SD cart slot
• 2 cameras – 640 × 480 pixels – Outside cameras can take 3D photos/video
• Added left analog thumb stick

Nintendo New 3DS xL

• Released- 2015
• Price – $199
• Size – 173 mm wide x 87 mm high x  20.3 mm thick
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – Top screen: 4.88″ – 800 x 240 pixels Bottom screen: 4.18″ – 320 x 240 pixels
• Can display stereoscopic 3D effects without the use of 3D glasses.
• DS/3DS and SD cart slot
• 2 cameras – 640 × 480 pixels – Outside cameras can take 3D photos/video
• Added left analog thumb stick

Nintendo New 2DS xL

• Released- 2017
• Price – $199
• Size – 163 mm wide x 87 mm high x  20.3 mm thick
  (width x height x depth)
• Screens – 2  – Bottom screen is touchscreen
• Screen specs – Top screen: 4.88″ – 400 x 240 pixels Bottom screen: 4.18″ – 320 x 240 pixels
• DS and SD cart slot
• 2 cameras – 640 × 480 pixels 
• Added left analog thumb stick
• Added right analog  stick
• Added Hinge