Braun BT 7420 vs Braun BT9520 F1

Comparison of BT 7420, BT9520 F1

39 specifications	A Braun BT 7420View product	B Braun BT9520 F1View product
Performance1 differ
Number of length stepsKnown for one	40	—Unknown — not stated by the source
Minimum hair lengthKnown for one	0.5 mm	—Unknown — not stated by the source
Maximum hair lengthKnown for one	2 cm	—Unknown — not stated by the source
Wet & DryDiffers	No	Yes
Hair comb	Yes	Yes
TechnologyKnown for one	AutoSense	—Unknown — not stated by the source
Easy to cleanKnown for one	Yes	—Unknown — not stated by the source
Washable	Yes	Yes
Waterproof	Yes	Yes
Control typeKnown for one	—Unknown — not stated by the source	Buttons, Rotary
Built-in displayKnown for one	—Unknown — not stated by the source	No
Design1 differ
Product colourDiffers	Grey	Black, Grey
Cordless	Yes	Yes
Power1 differ
Power source	Battery	Battery
Battery type	Built-in battery	Built-in battery
Battery low indicationKnown for one	Yes	—Unknown — not stated by the source
Operating timeDiffers	100 min	150 min
RechargeableKnown for one	—Unknown — not stated by the source	Yes
Battery voltageKnown for one	—Unknown — not stated by the source	3.7 V
Packaging dataidentical
Package widthKnown for one	257 mm	—Unknown — not stated by the source
Package depthKnown for one	166 mm	—Unknown — not stated by the source
Package heightKnown for one	78 mm	—Unknown — not stated by the source
Package weightKnown for one	660 g	—Unknown — not stated by the source
Package typeKnown for one	Box	—Unknown — not stated by the source
Packaging contentidentical
Attachments quantityKnown for one	8	—Unknown — not stated by the source
Base stationKnown for one	Yes	—Unknown — not stated by the source
Combs quantityKnown for one	4	—Unknown — not stated by the source
Number of precision combsKnown for one	2 pc(s)	—Unknown — not stated by the source
Razor includedKnown for one	Yes	—Unknown — not stated by the source
Cleaning brush	Yes	Yes
Storage pouchKnown for one	Yes	—Unknown — not stated by the source
Batteries includedKnown for one	—Unknown — not stated by the source	Yes
Batteryidentical
Battery technology	Lithium-Ion (Li-Ion)	Lithium-Ion (Li-Ion)
Battery weightKnown for one	—Unknown — not stated by the source	32 g
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	70 mm
DepthKnown for one	—Unknown — not stated by the source	160 mm
HeightKnown for one	—Unknown — not stated by the source	252 mm
WeightKnown for one	—Unknown — not stated by the source	591.2 g
Technical detailsidentical
Number of speedsKnown for one	—Unknown — not stated by the source	1

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.