HX5810 is the same model as HX5710 or HX5910. The only difference is the color. HX5810 is more bluish.

Product Features:
Removes up to 2X more plaque
Brushes up to 31,000 times per minute
Improves gum health
Helps to whiten and remove stains on teeth
Smart 2-minute timer

Easy-start: Gently increases power to ease into the Sonicare experience
Patented Sonic Technology: Gently and effectively reaches deep between teeth and along the gumline

Compatible model:
Sonic care Flexcare Essence HX5810 Toothbrush Handle fits Essence 5000 HX5300 HX5310 HX5350 HX5351 HX5451 HX5500 HX5700 HX5754 HX5800 HX5810 HX5600 HX5610 HX5620 HX2630 5300 5310 5500 5700 5750

Package include:
1*HX5810/HX5910 Toothbrush Handle
1*HX5100 Charger

Note: Please Note that the handles are in bulk package and have never been used. But due to the transports and long time storage, the handles may have some scratches or wears on them. does not affect the use. For very high fineness requirements please consider.