Which is better for cutting 2x4s and decking?

The DCS590. Its 2-9/16 in. depth clears a 2x in one pass at 90 degrees and its brushless motor holds speed in treated lumber. The DCS393 also cuts 2x at 90 and 45, but with less power and a shallower blade.

Is the DCS590 worth about $71 more than the DCS393?

Yes if you cut thick stock, want the brake, or work all day on one battery. No if your work is trim, plywood and light framing, where the lighter DCS393 does the job for $95.99 at Walmart.

Which saw is easier to handle?

The DCS393 at 6 lb. The DCS590 weighs 9.85 lb, which is steadier on long rips but tiring overhead or one-handed.

Do both use the same batteries?

Yes. Both run on DEWALT 20V MAX packs, and neither includes a battery or charger. The DCS590 is listed for 20V MAX XR batteries.

Which has better bevel capability?

The DCS590. It bevels to 57 degrees with stops at 45 and 22.5; the DCS393 goes to 50 degrees with no listed detents.

Should I wait for the DCS590 to drop back to $105?

It hit $105.00 on November 1, 2026 and was $219.00 on November 5, so it swings widely. At $167.00 you are paying mid-range; a price alert is worth setting.

Dewalt DCS393 bare tool 20V MAX 6 1/2" circular saw in bulk packaging vs DEWALT 20V MAX XR Brushless Cordless 7-1/4 in. Circular Saw, Tool Only (DCS590B)

Buy the DCS393 if you want a light, cheap 6-1/2" saw for framing, decking and quick trim work. Buy the DCS590 if you cut thick stock or need a full 7-1/4" blade, a brake and more power. The DCS393 is $95.99 at Walmart as of November 4, 2026; the DCS590 is $167.00 at eBay as of the same date, and it has traded as low as $105.00 on November 1, 2026.

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