Which is better for heavy strength training?

The NordicTrack. It goes to 55 lb per dumbbell versus 30 lb for the MX30, so it handles presses, rows and lunges the MX30 can't load.

Which is better for small weight jumps?

The MX30. Its 2.5 lb increments let you progress in half the steps of the NordicTrack's 5 lb settings, which matters for shoulders and arms.

Is the NordicTrack worth the extra over the MX30?

If you need more than 30 lb per hand, yes. At $299.41 at Lowe's as of November 7, 2026 it buys 25 more pounds per dumbbell, though it is one dumbbell, not a pair.

Do I get a pair with either?

The MX30 ships as a pair with a cradle. The NordicTrack listing is one dumbbell with a tray, so budget for a second if you want pairs.

The MX30's all-metal gear selector is the more durable mechanism on paper. The NordicTrack's steel plates are sturdy, but its plastic tray and coating wear with drops.

Which is better for a small apartment?

Both are compact. The MX30's cradle is smaller and its dumbbells are 9.5 in long at light settings; the NordicTrack's 8.5 in plates need a bit more room in the tray.

MX30 Rapid Change Adjustable Dumbbells vs NordicTrack Select-A-Weight Dumbbells

The NordicTrack Select-A-Weight is the better pick for most shoppers: it reaches 55 lb per dumbbell, adjusts in 5 lb steps, and costs $299.41 at Lowe's as of November 7, 2026. The MX30 tops out at 30 lb per hand but adds 2.5 lb micro-increments and a metal rack-and-pinion selector, which suits lighter, higher-rep work. The NordicTrack has swung between $199.00 and $469.99 since November 3, so its current price is mid-range, not a floor.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.