Which is better for tight spaces?

The DCD800. It is shorter (6.37 in vs 6.9 in) and lighter (about 2.4 lbs vs 3.4 lbs), so it fits and handles better overhead.

Which has more power?

The DCD791D2 spins faster, up to 2,000 RPM against 1,650 RPM. Both use brushless motors, so the gap shows up in speed, not brute torque.

Is the DCD791D2 kit worth the extra money?

Only if you need batteries and a charger. At $259.99 at eBay versus $109.99 at Walmart for the DCD800, you pay about $150 for two 2.0Ah batteries, a charger and a case.

Which lasts longer per charge?

The DCD800 listing includes a 5Ah battery, which holds more charge than the kit's 2.0Ah packs. The kit gives you two packs, so you can swap instead of stopping to charge.

Do they use the same batteries?

Yes. Both run on DeWalt 20V MAX lithium-ion packs, so batteries and chargers are shared across the two.

Which is better for driving screws?

The DCD791D2 has 15 clutch settings for consistent depth. The DCD800's clutch settings are not published, so the kit is the safer pick for precise screwdriving.

DeWalt 20V Max XR DCD800 vs DeWalt 20V MAX XR Brushless Compact Drill/Driver Kit DCD791D2

Buy the DCD800 if you want the newer, lighter drill and already own 20V MAX batteries. Buy the DCD791D2 kit if you need batteries, a charger and a case in one box. As of November 6, 2026, the DCD800 is $109.99 at Walmart and the DCD791D2 kit is $259.99 at eBay, so the kit costs about $150 more.

Today the DeWalt 20V Max XR DCD800 costs $183.89 less at its best price.

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