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  3. SL451 vs NA551

Ninja SL451 vs Philips NA551

What SL451 does better (3) and where NA551 wins (3) — every spec side by side.

Ninja SL451
Ninja · 2025SL451
8.7Score
3 advantages≈ US$190
vs
Philips NA551
Philips · 2025NA551
9.4Score
3 advantages≈ US$200
Higher score
6.6Power & capacity9.1
9.2Versatility9.4
8.5Controls & convenience7.2
Dimensions

Size comparison

SL451NA551
280 × 385470383 × 355
SL451NA551Difference
Height385 mm355 mm+30 mm
Width280 mm383 mm−103 mm

Drawn to the same scale from the official dimensions (front and side).

Why is SL451 better than NA551?

  1. Dishwasher-safe partsYes · NA551: No
  2. Capacity (bowl / basket / pot)9.5 l vs 9 l+6%
  3. DisplayLCD vs LED

Why is NA551 better than SL451?

  1. Power2,470 W vs 2,750 W+11%
  2. Non-stick coatingNo · SL451: Yes
  3. Max. temperature180 °C vs 190 °C+6%
Specifications

Side by side

Ninja SL451Ninja SL451≈ US$1908.7
Philips NA551Philips NA551≈ US$2009.4
Power & capacity
Power2,470 W2,750 W
Capacity (bowl / basket / pot)9.5 l9 l
Automatic programmes6—
Max. temperature180 °C190 °C
Cooking modes
FunctionsCook, Air fry, Bake, Roast, DehydrateAir fry
SteamingNo—
BakingYes—
Grill functionNo—
DehydratingYes—
Keep warmNo—
Baskets / cooking zones22
Sync / match finishNoNo
Viewing windowNo—
Controls & smart
DisplayLCDLED
TimerYesYes
Max. timer—60 min
App controlYes—
Design & build
Dishwasher-safe partsYesNo
Non-stick coatingNoYes
HousingPlasticPlastic
Width280 mm383 mm
Height385 mm355 mm
Depth470 mm—
Colours—Black
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