SMART 4 4000N CROSSACTION - Electric toothbrush ORAL-B - Free user manual and instructions
Find the device manual for free SMART 4 4000N CROSSACTION ORAL-B in PDF.
| Product Type | Electric Toothbrush |
| Brand | Oral-B |
| Model | SMART 4 4000N CROSSACTION |
| Brushing Technology | CrossAction 3D with oscillations, rotations and pulsations |
| Brushing Modes | Daily Clean, Sensitive, Whitening, Gum Care |
| Pressure Sensor | Yes, with light indicator |
| Integrated Timer | 2-minute timer with 30-second interval reminder |
| Connectivity | Bluetooth for connection to the Oral-B app |
| Power Supply | Rechargeable, Li-ion battery |
| Battery Life | Approx. 14 days (2 brushings per day) |
| Charging Time | 12 hours for full charge |
| Charger Type | Induction charger with base |
| Weight | Approx. 120 g (without brush head) |
| Dimensions (height x width x depth) | 220 x 30 x 30 mm (approx.) |
| Handle Material | ABS plastic with non-slip rubber coating |
| Compatible Brush Heads | All Oral-B brush heads except Pulsonic and iO |
| Number of Brush Heads Included | 1 CrossAction brush head |
| Waterproofing | IPX7 (resists immersion up to 1 meter for 30 minutes) |
| Care and Cleaning | Rinse the brush head and handle after each use; do not submerge the handle |
| Safety | Automatic shut-off after 2 minutes; overcharge protection |
| Warranty | 2 years (excluding brush heads and battery) |
| Country of Manufacture | Germany |
Frequently Asked Questions - SMART 4 4000N CROSSACTION ORAL-B
User questions about SMART 4 4000N CROSSACTION ORAL-B
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Download the instructions for your Electric toothbrush in PDF format for free! Find your manual SMART 4 4000N CROSSACTION - ORAL-B and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. SMART 4 4000N CROSSACTION by ORAL-B.
USER MANUAL SMART 4 4000N CROSSACTION ORAL-B
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Before operating this toothbrush, please read these instructions and save this manual for future reference.
IMPORTANT
- Periodically check the cord for damage. If cord is damaged, take the charging unit to an Oral-B Service Centre. A damaged or non-functioning unit should no longer be used. Do not modify or repair the product. This may cause fire, electric shock or injury.
- This product is not intended for use by children under age three. Children from 3 to 14 years and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge can use the toothbrush, if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
- Cleaning and maintenance shall not be performed by children.
Children shall not play with the appliance. - Use this product only for its intended use as described in this manual. Do not use attachments which are not recommended by the manufacturer.
- Replace brush (head) every 3 months or sooner if brush head becomes loose due to damage.
SmartGuide batteries
- Batteries may leak if empty or not used for a long time. Avoid skin contact whilst handling leaking batteries.
- Keep away from children. Do not swallow. If swallowed, seek medical advice at once.
- Remove fully discharged batteries immediately. Replace all batteries at the same time. Do not mix used and
new batteries, different brands or types. Do not disassemble, recharge or dispose of in fire.
WARNING
- If the product is dropped, the brush head should be replaced before the next use even if no damage is visible.
- Do not place the charger in water or liquid or store where it can fall or be pulled into a tub or sink. Do not reach for it when fallen into water. Unplug immediately.
- Do not disassemble the product except when disposing of the battery. When taking out the battery for disposal of the unit, use caution not to short the positive (+) and negative (-) terminals.
- When unplugging, always hold the power plug instead of the cord. Do not touch the power plug with wet hands. This can cause an electric shock.
- If you are undergoing treatment for any oral care condition, consult your dental professional prior to use.
- This toothbrush is a personal care device and is not intended for use on multiple patients in a dental practice or institution.
Important Information
- Your Oral-B SmartSeries toothbrush can be used with an interactive wireless display (i) and/or with your smart phone (find details under «Connecting your toothbrush to your Smart Phone»).
- To avoid electromagnetic interference and/or compatibility conflicts, deactivate the radio transmission of your toothbrush handle (e) before using it in restricted surroundings, such as aircrafts or specially marked areas in hospitals.
- Deactivate radio transmission by simultaneously pressing the on/off (c) and mode button (d) for 3 seconds until the radio transmission display (f) goes off. Follow the same procedure to reactivate transmission again.
- Persons with pacemakers should always keep the toothbrush more than six inches (15 centimeters) from the pacemaker while turned on. Anytime you suspect interference is taking place, deactivate the radio transmission of your toothbrush.
Description
a Brush head
b Pressure sensor light (red)/visual timer light (green)
c On/off button
d Brushing mode button
e Handle
f Radio transmission display (with Bluetooth® wireless technology)
g Charge level display
h Charging unit (basic charger and brush head compartment with protective cover)
SmartGuide
j SmartGuide holder
k Wall mount
I Adhesive ring
m Travel case (depending on model)
n Travel charger pouch (depending on model)
Specification
For voltage specifications refer to the bottom of the charging unit.
Connecting and charging
Your toothbrush has a waterproof handle, is electrically safe and designed for use in the bathroom.
- Plug the charger into an electrical outlet. For electric specifications refer to the bottom of the charging unit.
- The flashing blue lights indicate that the tooth-brush is charging (picture 1, page 5); once it is fully charged, the lights turn off. A full charge can take up to 24 hours and enables up to 10 days of regular brushing (twice a day, 2 minutes).
Note: After deep discharge, the blue lights might not flash immediately; it can take up to 10-15 minutes.
- If the rechargeable battery is low a blue light is flashing on the charge level display (g) for some seconds when turning your toothbrush on/off. If the rechargeable battery is empty the motor will stop and an orange light is flashing on the charge level display; it will need a 40-minute charge before you can use it for a 2-minute brushing.
- For everyday use, the handle can be stored on the charging unit to maintain it at full power. Overcharging is impossible.
- Battery maintenance: To maintain the maximum capacity of the rechargeable battery, unplug the charging unit and fully discharge the handle with regular use at least every 6 months.
SmartGuide adjustments
The SmartGuide (i) comes with a demonstration mode. Deactivate this mode by removing the compartment cover in the back (picture A, page 4) and push the «set» or «h/min» button.
A flashing «12:00» indicates that you can now adjust the clock time.
Note: If the SmartGuide display is blank before first use (no active demonstration mode/no batteries inserted) the batteries will need to be replaced/inserted before continuing. Batteries are supplied.
Clock Time
Press and hold the «set» button until «12h» is displayed. By briefly pressing the «h/min» button, you can toggle between «12h» or «24h» daytime format. Push «set» to confirm your choice. Then the hour digit starts flashing. Press the «h/min» button until the right hour appears and confirm with «set». Proceed same way to set both minute digits (picture B, page 4).
SmartGuide Icons
(dependently on model)
| Displayed Icon | Meaning |
| W | “Daily Clean” mode |
| W+ | “Deep Clean” mode |
| “Sensitive” mode | |
| “Whitening” mode | |
| ≈ | “Gum Care” mode |
| U | “Tongue Cleaning” mode |
| Too much pressure is applied. Reduce the brushing force. | |
| “Quadrant circle” Move to the next quadrant of your mouth when the relevant segment flashes. | |
| You reached the dentist recommended 2-minute brushing time (3-minute brushing time within the Deep Clean mode). | |
| After use your brushing time will be rewarded with stars. | |
| bAte | SmartGuide batteries are low. Change batteries of the SmartGuide. |
Brushing technique
Wet brush head and apply any kind of toothpaste. To avoid splashing, guide the brush head to your teeth before switching on the appliance (picture 2, page 5). Guide the brush head slowly from tooth to tooth, spending a few seconds on each tooth surface (picture 3, page 5). Start brushing the outsides, then the insides and finally the chewing surfaces. Brush all four quadrants of your mouth equally. You may also consult your dentist or dental hygienist about the right technique for you.
In the first days of using any electric toothbrush, your gums may bleed slightly. In general, bleeding should stop after a few days. Should it persist after 2 weeks, please consult your dentist or dental hygienist. If you have sensitive teeth and/or gums, Oral-B recommends using the «Sensitive» mode (optional in combination with an Oral-B «Sensitive» brush head).
Timer
You can choose between «Professional» or «2-Minute» timer.
The «2-Minute» timer signals with a short stuttering sound and a green light (b) that the dentist recommended 2-minute brushing time has been reached.
The «Professional» timer signals with a short stuttering sound and a green light at 30-seconds intervals to move to the next quadrant of your mouth (45 seconds intervals within «Deep Clean» mode) (picture 4, page 5). A long stuttering sound and a green light indicate the end of the professionally recommended 2-minute brushing time (3-minute brushing time within «Deep Clean» mode).
The timer memorizes the elapsed brushing time, even when the handle is briefly switched off during brushing. The timer resets if pausing longer than 30 seconds or briefly pressing the mode button (d) during pause.
Personalizing the timer
Your toothbrush comes with the «Professional» timer activated. To change this, press and hold the brushing mode button for 3 seconds until the SmartGuide shows «:30» and «timer». Briefly press the on/off button to switch to the «2-Minute» timer. Push the mode button to confirm.
Pressure sensor
If you put excessive pressure on your teeth, the red pressure sensor light (b) will light up (picture 4, page 5). Additionally, when brushing in «Daily Clean» or «Deep Clean» mode, the brushing mode will change to the «Sensitive» mode. Periodically
check the operation of the pressure sensor by pressing moderately on the brush head during use. Note: In «Tongue Cleaning» mode the pressure sensor is turned off.
Brushing modes (depending on model)
Your toothbrush offers different brushing modes:
| “Daily Clean” | - Standard mode for daily mouth cleaning |
| “Deep Clean” | - Mouth cleaning with extended brushing time of 45 seconds per quadrant (3 minute total brushing time) |
| “Sensitive” | - Gentle, yet thorough cleaning for sensitive areas |
| “Whitening” | - Polishing for occasional or everyday use |
| “Gum Care” | - Gentle massage of gums |
| “Tongue Cleaning” | - Tongue cleaning for occasional or everyday use |
When operating the «Tongue Cleaning» mode, we recommend using the «Sensitive» brush head. You can brush your tongue either with or without toothpaste. Brush the whole area of your tongue systematically in gentle movements. The recommended brushing time is 20 seconds; the SmartGuide will indicate completion with a smiley face.
Your toothbrush automatically starts in the «Daily Clean» mode. To switch to the other modes, successively press the mode button (picture 5, page 5). To return from any mode back to the «Daily Clean» mode, press and hold the mode button. The brushing mode is memorised even when the handle is briefly switched off during brushing. When pausing longer than 30 seconds or briefly pressing the mode button (d) during pause the brushing mode resets to the «Daily Clean» mode.
Brush heads
Oral-B offers you a variety of different Oral-B brush heads that fit your Oral-B toothbrush handle.
Oral-B CrossAction brush head

Our most advanced brush head. Angled bristles for a precise clean. Lifts and powers away plaque.
Oral-B FlossAction brush head

features micropulse bristles that allow for an outstanding plaque removal in the interdental areas.
Oral-B ProWhite brush head

features a special polishing cup to naturally whiten your teeth. Please note that children under 12 years old should not use the Oral-B «ProWhite» brush head.
Oral-B Sensitive brush head

features an extra soft bristle structure that is gentle on teeth and gums.
Oral-B Precision Clean brush head

cups each tooth with a curved bristle trim and reaches deep between teeth at the same time.
Oral-B brush heads feature light blue INDICATOR® bristles to help you monitor brush head replacement need. With thorough brushing, twice a day for two minutes, the blue color will fade halfway approximately within 3 months, indicating the need to exchange your brush head. If the bristles splay before the color recedes, you may exert too much pressure on teeth and gums.
We do not recommend using the Oral-B «FlossAction» or Oral-B «ProWhite» brush head with braces. You may use the Oral-B «Ortho» brush head, specifically designed to clean around braces and wires.
Synchronizing your toothbrush
To avoid interference of display messages when using more than one Oral-B toothbrush with radio transmission and SmartGuide in the same household, you need to assign the handles to their respective SmartGuide.
You can synchronize a maximum of 2 handles with one SmartGuide. To do so, push the «h/min» button in the battery compartment for at least 3 seconds. The SmartGuide shows «L---». Turn on your handle to start the synchronization process. It is finished when «L-1-» is displayed. Turn off the handle. To assign a second handle to the same SmartGuide turn on the other handle until «L-2-» is displayed. After having synchronized the second handle, «Full» will be displayed. Exit the synchronization mode by pressing the «h/min» or «set» button, otherwise it will end automatically after 30 seconds.
Connecting your toothbrush to your Smart Phone
Download the Oral- B^TM app for free from App Store (^SM) or Google Play ^TM . The Oral- B^TM app gives you the opportunity to use your time more efficiently, chart your brushing progress and customize your toothbrush settings (for more benefits see the Oral- B^TM app instructions).
- Start the Oral- B^TM app. You can use the app and your SmartGuide (i) at the same time.
- The Oral-B™ app will guide you through the Bluetooth pairing procedure.
Note: Oral-B™ app functionality is limited if Bluetooth is deactivated on your phone (for directions please refer to your smart phone's user manual).
- Once you start using your toothbrush by lifting it off the plugged-in charger (h) or pressing any button (c)/(d), it automatically connects to the Oral-B™ app. If no connection has been established, briefly press the mode button (d) on your toothbrush handle and wait for a connection.
- Any further app instructions will be displayed on your smart phone.
- Keep your smart phone in close proximity when using it with your toothbrush handle. Make sure the smart phone is safely positioned in a dry place.
Note: Your smart phone must support Bluetooth 4.0 (or higher) in order to connect to your toothbrush handle.
Cleaning recommendations
After brushing, rinse your brush head under running water with the handle switched on. Switch off and remove the brush head. Clean handle and brush head separately; wipe them dry before reassembling.
Disassemble the charging unit before cleaning. Brush head compartment and protective cover are dishwasher-safe. Both basic charger and SmartGuide should be cleaned with a damp cloth only.
The removable inner part of the travel case (m) is dishwasher-safe. The outer case should only be wiped clean with a damp cloth (picture 6, page 5). Make sure that travel case parts are completely dry before reassembling and toothbrush/brush heads are dry before storing in the travel case.
Note: Clean stains on the travel case surface immediately. Store travel case in a clean and dry place.
Use the adhesive ring (I) with the wall mount (k) if you prefer to mount the SmartGuide on a wall, mirror or other surface. Make sure the chosen surface is clean and dry before adhering. Stick the adhesive ring on the even side of the wall mount and press it firmly to the wall. Wait 24h before sliding the SmartGuide holder (j) into the fixed wall mount. Place the SmartGuide into its holder (picture C, page 4). The adhesive ring will not work on dirt-repellent surfaces.
Subject to change without notice.
This appliance complies with the requirements covered by the European Directive 1999/5/EC. Receiver Class 3, Duty Cycle Class 3. To find the complete EC declaration conformity, please visit www.oralb.com/ce.

Environmental Notice
Product contains batteries and/or recyclable electric waste. For environment protection do not dispose in household waste, but for recycling take to electric waste collection points provided in your country.

Battery removal at the end of the product's useful life
Open the handle as shown, remove the battery and dispose of it according to local environmental regulations.






Caution! Opening the handle will destroy the appliance and invalidate the warranty.
Bluetooth warranty
This appliance is equipped with a Bluetooth Smart approved radio module. Failure to establish a Bluetooth Smart connection to specific smart phones is not covered under the device guarantee, unless the Bluetooth radio module of this appliance is damaged.
The Bluetooth devices are warranted by their own manufacturers and not by Oral-B. Oral-B does not influence or make any recommendations to device manufacturers, and therefore Oral-B does not assume any responsibility for the number of compatible devices with our Bluetooth systems. Oral-B reserves the right, without any prior notice, to make any technical modifications or changes to system implementation of device features, interface, and menu structure changes that are deemed necessary to ensure that Oral-B systems function reliably.
Important information on Bluetooth® radio module
Although all indicated functions on the Bluetooth device are supported, Oral-B does not ensure 100% reliability in connection, and feature operation consistency. Operation performance and connection reliability are direct consequences of each individual Bluetooth device, software version as well as the operating system of those Bluetooth devices and company security regulations implemented on the device. Oral-B adheres to and strictly implements the Bluetooth standard by which Bluetooth devices can communicate and function in Oral-B toothbrushes. However, if device manufacturers fail to implement this standard, Bluetooth compatibility and features will be further compromised and the user may experience functional and feature-related issues. Please note that the software on the Bluetooth device can significantly affect compatibility and operation.
Trouble Shooting
| Problem | Possible reason | Remedy |
| TOOTHBRUSH | ||
| Oral-B handle does not operate with SmartGuide | 1. Synchronizing with SmartGuide failed2. Radio transmission is deactivated; radio transmission display (f) is turned off.3. Handle has no radio transmission installed | 1. Synchronize your toothbrush(es) (again). Follow steps under «Synchronizing your Toothbrush»2. Activate the radio transmission by simultaneously pressing the on/off (c) and mode button (d) for 3 seconds until the radio transmission display (f) turns on.3. Oral-B handle with radio transmission installed can operate with SmartGuide only. |
| 1. Short stuttering sounds/flashing green light every 30 seconds (45 seconds in Deep Clean mode)2. Stuttering sound/ flashing green light only after 2 minutes (3 minutes in Deep Clean mode) | 1. «Professional timer» activated2. «2-Minute timer» activated | 1. Set your timer to 2-Minute timer; follow steps under «Personalizing the timer»2. Set your timer to Professional timer (stuttering sounds/flashing green light every 30 seconds); follow steps under «Personalizing the timer» |
| Gums bleed slightly | 1. May happen in first days of usage2. Brush head3. Brushing mode | 1. Bleeding should stop after a few days. Should it persist after 2 weeks, please consult your dentist or dental hygienist.2. Try using the Oral-B «Sensitive» brush head.3. Try using the «Sensitive» mode |
| BRUSH HEADS | ||
| Oral-B brush head does not fit Oral-B handle | Oral-B brush head not compatible with your handle | Oral-B brush heads that fit your Oral-B handle do not fit «Pulsonic», «VitalitySonic», «Sonic Complete», «CrossAction Power» |
| APP | ||
| Toothbrush does not operate (properly) with Oral-B app | 1. Oral-B app is turned off.2. Bluetooth is not activated on your smart phone.3. Radio transmission is deactivated; radio transmission display (f) is turned off.4. Connection to Bluetooth has been lost.5. Your smart phone does not support Bluetooth 4.0 (or higher). | 1. Turn on Oral-B app.2. Activate Bluetooth on your smart phone; described in its user manual.3. Activate the radio transmission by simultaneously pressing the on/off (c) and mode button (d) for 3 seconds until the radio transmission display (f) turns on.4. Briefly press the mode button (d) to re-connect.Keep your smart phone in close proximity when using it with the toothbrush handle.5. Your smart phone must support Bluetooth 4.0 (or higher) in order to connect to your toothbrush handle. |
| Reset to factory settings. | Original functionality wanted. | Press and hold on/off button (c) for 10 seconds until all indicator lights double blink simultaneously. |