issa™ 4 plus (Black)
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USD$245.7
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USD$309.4
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The toothbrush that thinks for you
The toothbrush that makes you and your dentist say, “finally.” Meet issa™ 4 plus – the smartest toothbrush ever designed. Its revolutionary hybrid brush head deep-cleans teeth, protects gums, and helps prevent gingivitis. Clinically proven to improve oral hygiene by 140% and remove up to 30% more plaque than traditional brushes. After years of daily charging, worn-out bristles, and underwhelming results – this is the upgrade you’ve been waiting for.
4-in-1 complete oral care
The innovative hybrid brush head features 2 types of bristles on the front for an invigorating tooth clean & gentle gum massage, as well as a tongue and cheek cleaner on the back.
Tough on plaque
Clinically proven to remove 30% more plaque than your regular toothbrush. More durable than nylon bristles, meaning they maintain effectiveness over time without bending or fraying. 100% of users report that issa™ 4 plus is non-abrasive on teeth.
Gentle on gums, cheeks & tongue
Clinically proven to reduce gingivitis. Outer silicone bristles prevent you from brushing too hard - which can cause tooth & gum sensitivity. Soft, medical-grade & bacteria-resistant. Gently cleans & massages more sensitive areas of the mouth.
AI Pressure Adapt
issa™ 4 plus analyzes the pressure you’re applying while brushing & auto-adapts the intensity accordingly, for optimal results.
Brush head lasts 2x longer
Environmentally conscious, issa™ 4 plus features a one-of-a-kind, revolutionary hybrid brush head that stays cleaner for longer than traditional toothbrushes - meaning you only need to replace it once every 6 months, instead of every 3 months like most other toothbrushes.
Sonic Pulse technology
Delivers up to 11,000 high-intensity pulsations per minute, creating gentle micro-sweeps that deeply clean teeth, gums, cheeks, and tongue.
Broadway
Broadway "Statutory Removal Service" - Terms
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1. EligibilityCustomers who purchase regulated electrical appliances specified by the "Product Eco-Responsibility Ordinance," including air conditioners, washing machines, refrigerators, televisions, computers, printers, scanners, and monitors, may request arrangements for the free removal of old appliances of the same type and quantity (must belong to the same category of regulated appliances).
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2. Removal LocationApplicable at any location in Hong Kong.
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3. Selection Period
- Customers may select the removal service at the store or during online shopping; or
- Customers may request it within 3 days after the purchase. After that, the right to request removal will be forfeited.
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4. Removal Service Time
- Generally, 3 working days should be reserved for arranging the removal service.
- On the date scheduled by the customer, the old item will be removed from the designated location.
- The removal of the old item must be completed within 14 days after the regulated appliance has been accepted.
- If the above arrangements (a-c) do not meet the customer's needs, the customer may forgo the removal service and handle the old item themselves or choose the paid upgraded removal service offered by the company.
- Services are not provided on Sundays and public holidays.
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5. Notes
- The removal service is handled separately from delivery and installation services. Items waiting to be removed can be taken away first if necessary, or stored temporarily at the removal location and taken away later, as arranged with the staff.
- Once the old item is collected, it cannot be returned.
- The old item must not have any internal parts removed and should be placed independently, free from any devices, connection systems, or obstacles.
- If the old item has serious hygiene issues (e.g., food residue, cockroaches, ants), staff have the right to refuse to remove the item, and the consumer will no longer be eligible for the free removal service.
- If the customer needs to change the agreed removal location or time, please notify by phone at least 2 working days in advance.
- In cases of black rainstorm warning / Signal No. 8 or above for tropical cyclones, the removal service will be suspended and rescheduled.
- If there are delays, suspensions, or rescheduling due to traffic, weather conditions, or other factors on the scheduled removal time, the company will not be liable.
- The personal information of customers and contacts will only be used for the removal service. The company will comply with the Personal Data (Privacy) Ordinance (Cap. 486 of the Laws of Hong Kong) in handling the data.
- Each regulated electrical appliance will have an appropriate recycling label. When returning goods, the customer must return the relevant label.
- In case of any disputes, the company reserves the final decision.
- Air ConditionerIncludes standalone and split-type air conditioners with a cooling capacity of no more than 7.5 kW (approximately 3 HP).
- Washing MachineWashing capacity not exceeding 10 kg.
- RefrigeratorTotal volume not exceeding 500 liters.
- TelevisionScreen size not exceeding 100 inches (measured diagonally).
- ComputerIncludes personal computers, desktops, tablets, laptops, and notebooks.
- PrinterWeight not exceeding 30 kg; if simultaneously used as a copier, facsimile machine, or scanner, it is still considered a printer.
- ScannerWeight not exceeding 30 kg.
- MonitorDoes not have data storage or computing functions, and the screen size is between 5.5 inches and 100 inches (measured diagonally).

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