Today only, Groupon has the Red or White or Black Martian Notifier Smart Watches Sale Priced for $37.99 with Free Shipping. Use coupon code: VISA5

These sells for $75+ at Amazon; even higher elsewhere. Average 4.2 of 5 star reviews from buyers. Review

• Compatible with select Android and Apple iOS Smartphones/Tablets
• 1.5" graphic OLED display
• Phone-to-camera remote control
• Rechargeable battery
• Alerts you when you walk out of range of your phone