Published weight range, increment, and footprint — not Amazon star ratings.
Dial-adjustable pair covering 5–52.5 lb23.8 kg per hand across 15 published settings in a 16.9 × 8.3 × 9 in22.9 cm footprint, with a 2-year parts warranty.
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Dial-adjustable pair covering 10–90 lb40.8 kg per hand in 17 published 5 lb2.3 kg steps, measuring 17.5 × 9.5 × 10 in25.4 cm, with a 3-year parts warranty.
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Twist-handle pair covering 5–80 lb36.3 kg per hand in 5 lb2.3 kg steps, 485 × 193 × 185 mm per unit, with a 2-year warranty extendable to 4 years when bought from NÜO Athletics.
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Selector-pin expandable pair published at 5–90 lb40.8 kg (2.3–40.8 kg) per hand with 2.5/5 lb micro-weight increments and a 5-year residential warranty.
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Non-expandable 5–50 lb22.7 kg selector-pin pair in a 13 × 7 × 7.25 in18.4 cm frame, with 2.5 and 5 lb2.3 kg increments and a 5-year residential warranty.
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One-touch pair published at 8–50 lb22.7 kg per dumbbell in 6 lb2.7 kg steps (8, 14, 20, 26, 32, 38, 44, 50 lb22.7 kg), 100 lb45.4 kg total, with a 1-year limited warranty.
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Cast-iron twist-lock pair published at 10–80 lb36.3 kg with 8 settings, 18.11 × 6.68 × 6.68 in17 cm per dumbbell, and a 4-year warranty with drop coverage for orders shipped on or after March 1, 2026.
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Twist-lock pair published at 5–50 lb22.7 kg each in 5 lb2.3 kg steps, 14.5 × 7.9 × 7.5 in19.1 cm at full load, 100 lb45.4 kg pair weight, with a 2-year parts warranty.
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Twist-handle pair covering 5–50 lb22.7 kg per hand in 5 lb2.3 kg steps, 395 × 193 × 185 mm per unit, with the same 2-year / 4-year direct-purchase warranty as the 580.
Current US expandable Elite model: 5–90 lb40.8 kg per hand, 16.25 × 6 × 6 in15.2 cm, 2.5/5 lb increments, full 90 lb40.8 kg pair listed on the manufacturer page, and a 5-year residential warranty.
Non-expandable 3–24 lb10.9 kg selector-pin pair in a 10 × 5.5 × 5.5 in14 cm frame, with 3 lb1.4 kg increments and a 5-year residential warranty.
Expandable 5–100 lb45.4 kg selector-pin pair measuring 19.21 × 7.63 × 7.72 in19.6 cm, with 2.5 or 5 lb2.3 kg increments and a 5-year residential warranty.
Screw-lock pair published at 5–75 lb34 kg each in 2.5 lb1.1 kg increments, 6.7 in17 cm square × 14.5 in36.8 cm long at 75 lb34 kg, with a lifetime warranty and add-on kits to 120 or 165 lb74.8 kg.
Smaller Quick-Lock pair published at 5–45 lb20.4 kg each in 2.5 lb1.1 kg increments, 6.7 in17 cm square × 11.5 in29.2 cm long at 45 lb20.4 kg, lifetime warranty, same handles as the 75 lb34 kg system.
Magnetic pop-pin pair published at 10–125 lb56.7 kg per hand, 18.3 in46.5 cm long at max, with 2.5/5/10 lb increments and a lifetime warranty.
Lock-N-Load switch pair published at 5–60 lb27.2 kg per hand, 18.5 in47 cm long at 60 lb27.2 kg, with 2.5/5/10 lb increments and a lifetime warranty. REP does not sell an xDB model.
Select-A-Weight pair published at 10–55 lb24.9 kg per hand with 15 listed settings and 10 lb4.5 kg handle bars, model NAMSDB20, listed on the manufacturer page.
Dial-adjust pair published at 5–50 lb22.7 kg in 5 lb2.3 kg increments, 16.5 × 7.1 × 7.9 in20.1 cm, with a 2-year warranty.
Dial-adjust pair published at 11–88 lb39.9 kg in 7 lb3.2 kg increments across 12 levels, 15.9 × 8.7 × 9.8 in24.9 cm, with a 2-year warranty.
Twist-to-select pair published at 5–25 lb11.3 kg each in 5 lb2.3 kg steps, stored footprint about 20.5 × 16.2 × 8.7 in22.1 cm with bases, with a lifetime warranty.
Rotating-dial pair published at 15–55 lb24.9 kg in 10 lb4.5 kg steps (15, 25, 35, 45, 55), 19 × 8.5 × 8 in20.3 cm per dumbbell, 58 lb26.3 kg each / 116 lb52.8 kg set, with a 1-year warranty.
Spinlock plate-loaded set published as 20 kg or 30 kg total with 0.5 / 1.25 / 2.5 kg plates, 35 cm bars, and a connector tube; live product URL returned 404.