Amazon has the Amazfit Neo Fitness Retro Smartwatch (Black or Orange, W2001OV1N) for $40 - $30 off coupon clip (extra savings coupon applied at checkout) = $30 with free shipping. Has real-time workout tracking, 1.2" always-on display, heart rate / sleep monitoring, smart notifications, and 28-day battery life.

Has good Amazon Reviews.

$30 Shop Now