Which is better for building a deck?

The 4-tool kit, because the circular saw cuts 2-by material and the 4.0Ah battery lasts through many cuts. The 2-tool kit's impact driver has more torque but no saw.

Which has longer-lasting tools?

The 2-tool HP kit. Brushless motors have no carbon brushes to wear out, so they typically outlast the brushed motors in the 4-tool kit.

Is the 4-tool kit worth $110 more?

Yes if you need a saw and light, since buying those separately costs more than the gap. No if you only drill and drive.

Which drill is more powerful?

The 4-tool kit's drill, at up to 515 in-lbs versus 450 in-lbs. The gap is small in practice.

Do the batteries work in both kits?

Yes. Both are part of the Ryobi ONE+ system of over 300 products, so batteries and chargers interchange.

Which is better for overhead work?

The 2-tool kit. Its impact driver is 5.3 in long and light, which reduces strain when working above your head.

Ryobi 18V ONE+ HP 2-Tool Combo Kit vs Ryobi ONE+ 18V 4-Tool Combo Kit

Buy the 2-tool HP kit if you mainly drill and drive and want brushless motors, two batteries and the lowest price. Buy the 4-tool kit if you need a circular saw and light and value tool count over motor quality. The 2-tool kit is $139.00 at The Home Depot as of November 8, 2026, and the 4-tool kit is $249.00 at The Home Depot as of November 8, 2026.

Today the Ryobi 18V ONE+ HP 2-Tool Combo Kit costs $110.00 less at its best price.

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