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Oral-B iO Series 4 3794 review

Rotary brush action. Priced at $299.

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CHOICE Expert Rating

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CHOICE Expert Rating

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

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Good points

The product's best features and benefits

Bad points

Drawbacks or issues you need to know about
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Brush head tested
Ultimate clean
Brush action View more details.

Lateral or rotary. Rotary action brushes clean by oscillating whereas lateral models vibrate from side to side.

Rotary
Recommended View more details.

We recommend electric toothbrushes with a CHOICE Expert Rating of 80% or more.

CHOICE Expert Rating View more details.

The CHOICE Expert Rating is made up of ease of use (volunteer trialists) (45%), feel (volunteer trialists) (45%) and ease of charging (10%).

Ease of use score (volunteer trialists) View more details.

We ask trialists to rate how easy to is to remove and attach the heads, adjust modes and turn each brush on and off.

Feel score (volunteer trialists) View more details.

Triallists select a brush based on rotary or lateral brushing preferences, then assess how 1) the toothbrush feels to hold and use, 2) how well it comfortably reaches all areas of the mouth and 3) how the brush feels against teeth, gums, tongue etc while in use.

Ease of charging score View more details.

We assess charging method, clarity of charge notifications such as LED lights, and how easy it is to plug and unplug each toothbrush to charge.

Tested battery usage time View more details.

Number of days brushing you will get from a full charge, based on two-minute cleaning sessions twice per day.

Price View more details.

This is the recommended retail price.

$299
Cost per pack for replacement heads View more details.

Recommended retail price per pack.

$75
Brush head cost View more details.

The replacement cost of individual brush heads. Many are only available in multipacks of two or more. Individual cost is calculated by dividing the cost of the pack by the number of heads included.

$18.74
Number of replacement heads per pack View more details.

Brushes that don't allow you to change the head will mean you'll have to replace the entire unit up to four times a year.

4
Shop Ethical rating View more details.

Shop Ethical rates the environmental and social impact of the company (not the product) using independent sources. This rating is not included in our total score. The rating ranks from A (highest) to F (lowest); N/A means there is no rating for that company.

F
Replaceable heads included with brush View more details.

The number of replacement heads included in the pack with the toothbrush.

1
Stated battery usage time
Not stated
Weight (g) View more details.

Weight of the electric toothbrush in grams.

133
Country of origin
Germany
Website
oralb.com.au
Battery low indicator View more details.

This shows you when you should recharge your toothbrush.

Yes
Timer View more details.

A timer will either indicate when to move the brush to a different part of your mouth, or when you have passed the recommended two-minute clean.

Yes
Operating duration (min) View more details.

Preset operating duration. Some models have a range of operating times depending on the cleaning mode.

2
Auto stop View more details.

Automatically turns off the motor when the brush duration is reached.

Yes
Interval reminders View more details.

An alert that prompts you to start brushing the next section of your mouth. This column lists the number of intervals and their duration.

4 x 30 sec
Pressure indicator View more details.

Helps prevent gum damage by detecting when you're brushing too hard and reducing the movement action of the toothbrush.

Yes
Number of settings View more details.

Total number of brush modes e.g. sensitive, deep clean, whiten.

4
Bristle wear on brush indicator View more details.

Some heads use bristles that slowly fade to white over time, indicating that they need to be changed.

Yes
Storage box/travel container
Yes
Member reviews

Average rating

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