Smart Dumbbells

The new Bowflex SelectTech Dumbbells have selectorized dials that adjust the lifting weight from 5 pounds to 52.5 pounds, with the unused weight plates staying secure in a base. The free-weight system functions as 15 pairs of dumbbells in a single unit, perfect for those short on space. A pair of free-weights comes with a 90-minute training tape “Secrets of the 4 Step Rep” by Tom Purvis. It also includes a six-week satisfaction guarantee, two-year limited warranty on all parts, five-year warranty on weight plates, and a one-year warranty on labor. $399. www.bowflexselecttech.com.