The toothbrush does work, although it has been used twice daily for around 5 years so there might not be too long left in the battery. No toothbrush heads are included.
eBay
Portable Replacement Toothbrush Charger for Philips Sonicare HX6100 Electric Toothbrush Charger Cradle Base US/EU/USB Plug
Aliexpress UK
Model: Sonicare ProtectiveClean 5100. This item is in Excellent USED condition. Hardly any marks on the item. Does not includes any Brush Heads. Alerts you to replace your brush head when it’s no longer performing optimally.
eBay
For Philips Sonicare HX6100 Electric Toothbrush Charger Cradle Base EU Plug Toothbrush Inductive Charger Base Adapter Accessory
Aliexpress UK
5000 series such as HX5100, HX5200, HX5251, HX5300, HX5350, HX5351, HX5451, HX5500, HX5700, HX5750, HX5751, HX5800 etc. Series: 5000 series sonicare toothbrush handles, Elite Series, Flexcare Series, Heathy White series.
eBay
Smart Electric Toothbrush, 3 Modes USB Charging Rechargeable Electric Toothbrushes, Compatible with Philips Sonicare Brush Heads
Aliexpress UK
Used for a short time. Selling with charger and replacement sonicare compatible brush heads as per photos. Thanks for viewing!
eBay
Electric toothbrush head, replaceable sonic electric toothbrush head, suitable for Philips Sonicare's electric replaceable brush
Aliexpress UK
Philips Sonicare ProtectiveClean 5100 Electric Toothbrush HX6850/47.
eBay
Best for Philips Sonicare DiamonClean Toothbrush Charger CBA1001 ELectric Toothbrush 9300/9500/9700 Series W/O Box EU Plug
Aliexpress UK
Colour: Protectiveclean 5100 Electric Toothbrush, Pink, With Travel Case. Box Contains Handle: 1 ProtectiveClean. Brush heads: 2 W2 Optimal White standard. Travel case: 1. User manual. Toothbrush Head Shape: Oval.
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Original HX6930 Electric Toothbrush host for Philips Sonicare HX6970 HX6930 HX6920 HX6910 replacement toothbrush handle
Aliexpress UK
eBay
Kids Replacement Toothbrush Heads Compatible with Philips Sonicare Electric Toothbrush, Soft Bristles Brush Head for HX6042/94
Aliexpress UK
Philips Sonicare Original C3 Premium Plaque Defence Standard Sonic Toothbrush Heads - 4 Pack in White (Model HX9044/17) UK based
eBay
Sonic Toothbrush Heads For Philips Sonicare 20pcs With 4pcs Protective Cover Soft Dupont Bristles Electric Toothbrush
Aliexpress UK