Tanga offers the Martian Notifier Android / iOS Smartwatch in Red, model no. MN200RBR, or White, model no. MN200WBW, for $24.99 with free shipping. That's $5 under our mention from a month ago and tied with the lowest total price we've seen. (It's the best deal now by $5.) It's compatible with select iPhones (4S and later) and Android devices (3.0 and later) and displays SMS, caller ID, Facebook, Twitter, and email notifications. Features include a 96x16 OLED display with scratch-resistant acrylic crystal, Japanese quartz movement, Bluetooth 4.0, custom vibration alert patterns, remote trigger for taking pictures, built-in LiPo rechargeable battery with up to seven days of use time per charge, and silicone band.