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Ninja - Double Stack XL SL400 vs Tefal - Easy Fry 9-in-1 FW501827

Last updated · How Mars Score works
Double Stack XL SL400NINJARENDER
Probe A
Ninja
Double Stack XL SL400
76.5/ 100B
Power92· 40%
Capacity55· 30%
Features—· 30%
Easy Fry 9-in-1 FW501827TEFALRENDER
Probe B
Tefal
Easy Fry 9-in-1 FW501827
55.5/ 100D
Power65· 40%
Capacity42· 30%
Features—· 30%
Quick verdict

Between the Double Stack XL SL400 and Easy Fry 9-in-1 FW501827, the Double Stack XL SL400 comes out ahead in capacity / wattage, while the Easy Fry 9-in-1 FW501827 wins on presets. Overall, the Double Stack XL SL400 scores 76.5 and the Easy Fry 9-in-1 FW501827 scores 55.5 on our Mars Score.

Buying advice

Which should you buy?

The Double Stack XL SL400 is the clear pick on raw spec strength, leading by 21.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the Double Stack XL SL400 if you care most about capacity / wattage. The biggest gaps in its favor are capacity, wattage, max temperature, among others.

Pick the Easy Fry 9-in-1 FW501827 if you care most about presets. Its strongest claims are presets.

There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.

Bottom line: the Double Stack XL SL400 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Ninja - Double Stack XL SL400 wins

  • ▲Capacity — 126.19% more. 9.5 L vs 4.2 L.
  • ▲Wattage — 54.84% more. 2400 W vs 1550 W.
  • ▲Max temperature — 16.00% more. 232 °C vs 200 °C.
  • ▲Has Dual zone.

Why Tefal - Easy Fry 9-in-1 FW501827 wins

  • ▲Presets — 3.00 more. 9 vs 6.
Full readout

Spec comparison

Capacity

SpecNinja - Double Stack XL SL400Tefal - Easy Fry 9-in-1 FW501827
Capacity9.5 Llead4.2 L
Dual zonetrueleadfalse

Power

SpecNinja - Double Stack XL SL400Tefal - Easy Fry 9-in-1 FW501827
Wattage2400 Wlead1550 W
Max temperature232 °Clead200 °C

Features

SpecNinja - Double Stack XL SL400Tefal - Easy Fry 9-in-1 FW501827
Presets69lead
Smart appfalsefalse
Dishwasher-safetruetrue
Noise60 dB58 dBlead
Drill down

Spec-level deep dives

Capacity→Dual zone→Wattage→Max temperature→Presets→Smart app→Dishwasher-safe→Noise→
By manufacturer

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Tefal →2

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