OtiumDirect via Amazon offers its Otium Gear S2 Round Display Bluetooth Smartwatch for Android in three colors for $99.99. Each color has a unique coupon code, as listed below, that drops the price to $49.99. With free shipping, that's $140 off list and the lowest total price we could find. It features an aluminum case, touchscreen IPS LCD display, and can be used as a standalone phone via SIM card. (It's also compatible with iOS devices, but currently with limited functionality.) Available colors, with coupon codes:

• Black/Silver for $49.99 via "R6D7R82T" (pictured)
• Silver for $49.99 via "QNOMZSKN"
• Black/Gold for $49.99 via "76Z22Q2L"