The Samsung BlackJack II, or Samsung SGH-i617, is a smartphone available through AT&T in the United States. It is the successor to the Samsung BlackJack. Canadian version, SGH-i616 is marketed as "Samsung Jack" by Rogers and Fido. The phone has since been succeeded by the Samsung Epix.

The phone comes in black, burgundy, blue, & pink.^[1]

Specifications from the Samsung website:^[2]

• Screen size: 2.4 inches
• Screen resolution: 320 x 240 pixels, 65K color TFT display
• Input method: QWERTY keypad with backlight and jog wheel
• Operating System: Windows Mobile 6 Standard Edition (can be updated to Windows Mobile 6.1)^[3]
• Processor: 260 MHz Texas Instruments OMAP 1710
• Storage: External microSD slot, supports up to 4 GB SDHC cards
• Voice Commands (When Updated to Windows Mobile 6.1)
• Flash Memory: 128 MB RAM, 256 MB ROM
• Modes: Quad-band GSM (850, 900, 1800, and 1900)
• Data connection: 3G (UMTS and HSDPA at 850,1900,2100 MHz. Canadian version, SGH-i616 does not support UMTS 2100, only 850/1900, which makes 3G speeds not accessible in Europe) and 2G (EDGE and GPRS)
  • AGPS on-board
• Bluetooth 2.0
• 2.0 megapixel camera that can take photographs and videos
  • Multiple resolutions: 1600 x 1200, 640 x 480, 320 x 240, and 176 x 144
  • 4X digital zoom
  • Self timer
  • Multi-shot
  • Brightness level adjustment
  • No flash
• Supported video formats: MPEG4, H.263, WMV
• Battery: Removable 3.7 Volt Lithium-ion, 1,700 mAh, up to 7 hours of talk time and up to 14 days of standby
• Size: 4.4 x 2.3 x 0.4 inches
• Weight: 3.52 ounces

• Upper indicator-light color meanings:
  • Purple: message sent/received
  • Blue: Bluetooth activated/deactivated/Alarm
  • Amber: problem with connection
  • Red: charging or battery low
  • Green: fully charged
• Home Screen Status Indicators:
  • 3G: connected to 3G service
  • E: connected to EDGE service
  • G: connected to WAP service
  • Wi-fi: Yes "Good quality"

The Samsung Jack, or Samsung SGH-i637, is a smartphone available through AT&T in the United States. It is the successor to the Samsung BlackJack II. The phone comes in metallic gray.^{[citation needed]}

• Official Samsung Blackjack II site Archived 2011-07-16 at the Wayback Machine
• Samsung Galaxy Beyond X Smartphone to Sport Hexa Cameras and 5G Support
• Reviews: c|net, phoneArena, Washington Post Archived 2008-02-15 at the Wayback Machine
• Resources: MyBlackjack2.com
• Resources: Samsung Windows Mobile support Archived 2009-02-16 at the Wayback Machine