Feature SP4000 SP4100 X’Press SP1900 Booster Ironing surface 67cm wide x 25cm deep Yes Yes Yes Yes 100lbs of pressure when closed Yes Yes Yes Yes Fingertip control Yes Yes Yes Yes Wide opening for larger items like sheets Yes Yes Yes Yes No delay, instant refilling of the reservoir Yes Yes Yes Yes A locking handle Yes Yes Yes Yes Easy storage – stored upright Yes Yes Yes Yes Steam output 90g / min 90g / min 90g / min 80g / min Boost of steam No No 120g / min 110g / min Integral mini-iron with on/off button No No Yes No Integral anti-scale Yes Yes Yes No Electronic Mineral Control No Yes Yes No Anti-scale warranty No 10 years 10 years No Water reservoir 0.75 litre 0.75 litre 0.75 litre 0.6 litre Buzzers Press closed No No Yes No Pilot lights: Power on Change cartidge Hotplate thermostat No No Yes No Yes Yes Yes Yes Yes No No Yes