Amazon Basics Hex dumbbell, $13.58 at Amazon.com

Amazon Basics Hex dumbbell, $29.65 at Amazon.com

Ativafit Fast-adjusting dumbbell set, $439.99/$389.99 at Amazon.com

SMRTFT Nuobell Adjustable dial dumbbell set, $795 at Amazon.com

PowerDyne adjustable dumbbell set, $480/$369.99 at Nonzero Gravity

UpGo Adjustable dumbbell set, $239.99/$116.98 at Walmart

VEICK Anti-slip adjustable dumbbell, $65.99/$59.39 at Amazon.com

ZARA HOME Oak and steel dumbbells (2-set), $59.90 at ZARA HOME

SelectTech dumbbells, $479/$399 at Bowflex

Bowflex SelectTech dumbbell set, $399.99 at Amazon.com