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7AM2M Sonic Review

Despite the low cost and long-lasting battery, this electric toothbrush falls short on cleaning and comfort
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7AM2M Sonic Review
Credit: 7AM2M
Price:  $40 List
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Manufacturer:   7AM2M
By Genaveve Bradshaw and Ryan White  ⋅  Dec 16, 2023
57
OVERALL
SCORE


RANKED
#14 of 17
  • Cleaning - 40% 5.8
  • Comfort - 30% 4.7
  • Ease of Use - 20% 6.6
  • Battery Life - 10% 6.0

Our Verdict

While the 7AM2M Sonic is affordable and boasts an impressive battery life, its cleaning performance falls short. During our testing, this unit felt harsh on our gums, no matter what mode we set it to. The absence of important features, such as a pressure sensor, made our experience with this device way less intuitive. To see what other toothbrushes merited our recommendation, both manual and electric, see our comprehensive toothbrush review.
REASONS TO BUY
Accessible price
Great battery life
Multiple colors available
REASONS TO AVOID
Subpar cleaning
Not gentle
No pressure sensor

Compare to Similar Products

 
7am2m sonic
This Product
7AM2M Sonic
Awards  Best Buy Award Top Pick Award Best Buy Award Best Buy Award 
Price $40 List
$25.99 at Amazon
$50 List
$39.96 at Amazon
$30 List
$19.97 at Amazon
$40 List
$29.96 at Amazon
$60 List
$39.95 at Amazon
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Bottom Line This device carries a low price tag and long battery life, but it left us wanting moreInexpensive yet fully capable, this electric toothbrush is a solid choice for just about everyoneA great entry level option, but falls a little short in terms of overall cleaning abilityAn inexpensive minimalist toothbrush with a long-lasting battery that cleans wellAffordable, effective, and user-friendly — this device offers value with good cleaning and extra brush heads
Rating Categories 7AM2M Sonic Philips Sonicare 4100 Quip Philips One Aquasonic Black Series
Cleaning (40%)
5.8
7.9
5.8
6.8
6.8
Comfort (30%)
4.7
7.7
7.6
7.0
6.1
Ease of Use (20%)
6.6
7.8
8.4
8.0
8.0
Battery Life (10%)
6.0
5.0
10.0
3.5
4.0
Specs 7AM2M Sonic Philips Sonicare 4100 Quip Philips One Aquasonic Black Series
Measured Battery Life 52.5 days 49.5 days 168 days 30 days 31 days
Pressure Sensor No Yes No No No
Number of Brushing Modes 5 modes:
Clean, White, Polish, Milder, Sensitive
1 mode:
Clean
2 sensivity levels
1 mode:
Clean
1 mode:
Clean
4 modes:
Clean, Soft, Whiten, Massage
Estimated Annual Brush Head Cost $9.99 for 4 pack $44.96 for (1) four pack $28 for (4) 1 packs $15.92 for (2) two packs $19.90 for (2) two packs
Charger or Battery Info USB
(block not included)
USB
(block not included)
1 AAA battery USB 100 - 240VA
50-60Hz
0.8 - 1.6W
American Dental Association accepted? No Not Listed Yes Not Listed Yes
Waterproof / Resistant Yes, can use in shower Yes, can use in shower Yes, can use in shower No, cannot be used in the shower Yes, can use in shower
Number of Brush Head Styles Available 1 style available in 2 colors 8 styles, most available in 2 colors 1 style available in multiple colors 1 style available in multiple colors 3
Number of Included Brush Heads 6 1 1 1 8
Thirty Second Reminder Yes Yes Yes Yes Yes
Two Minute Alert Yes Yes Yes Yes Yes
Travel Case Included No No Yes Yes Yes
Measured Handle Weight 4.1 oz 3.2 oz 1.2 oz 1.4 oz 3.6 oz
App No No No No No
Available Colors 10 3 6 4 1

Our Analysis and Test Results

Overall, the 7AM2M didn't completely miss the mark during testing, impressing us with its extended battery life and various color options. Plus, it includes handy features like a two-minute timer and clearly labeled modes. However, its subpar cleaning left much to be desired.

Performance Comparison


7am2m sonic - we enjoyed the fun colors and design of the 7am2m.
We enjoyed the fun colors and design of the 7AM2M.
Credit: Natalie Kafader

Cleaning


We put each brush through its paces using a multitude of tests, from plaque removal to spreading a messy mixture of pesto and coffee grounds across a dental model. This allowed us to thoroughly evaluate overall efficiency and effectiveness.

The 7AM2M has a traditional side-to-side brushing action and five modes to control the intensity.
Credit: Natalie Kafader

We began by having our testers chew a plaque-dispensing tablet that highlights any and all buildup in a bright pink color. This process allows us to observe how much plaque is removed during a standard two-minute brushing session. The 7AM2M Sonic performed adequately in this test, effectively eliminating most plaque but requiring a bit of extra effort in terms of movement, similar to a manual toothbrush. Testers reported a mostly clean feeling overall. However, with the dental model it faced some challenges. The brush head felt too big and clunky to reach every nook and cranny, leaving behind some residue.

Our "before" test photo used to score cleaning performance.
Our "before" test photo used to score cleaning performance.
We still noticed hints of pink in between our teeth after using the...
We still noticed hints of pink in between our teeth after using the 7AM2M Sonic.

Comfort


We evaluated comfort through various factors, including mode options, harshness, noise level, and the presence of a pressure sensor. The 7AM2M Sonic offers five modes: Clean, Mild, Polish, Milder, and Sensitive. However, we found most of them felt too harsh for daily use, except 'Milder' and 'Sensitive.' In terms of noise level, each mode provides its own vibration pattern and tone, with none of them being too loud, ranging from 46 to 63 decibels, according to our decibel reader. You'll definitely know it's on, but it shouldn't bother most users.

7am2m sonic - this handle feels smooth, yet easy to hold.
This handle feels smooth, yet easy to hold.
Credit: Natalie Kafader

Ease of Use


To effectively evaluate this metric, we assessed the number of modes each brush offers and evaluated the simplicity and intuitiveness of switching between them. Additionally, we considered how easy they were to clean, whether a two-minute timer is present, and any included storage options.

7am2m sonic - the large power button is used to switch between modes, which are...
The large power button is used to switch between modes, which are all clearly marked on the handle.
Credit: Natalie Kafader

The 7AM2M Sonic is easy enough to operate but does have a quirk or two. To switch between the five available modes, you simply press the power button. However, you are forced to cycle through each mode one by one, which we found a little inconvenient. Fortunately, it's clear which mode you're in, thanks to an indicator light that highlights each mode on the handle. This device has a two-minute timer and shuts off after the cycle is up. It's also simple to clean thanks to the smooth handle and non-obtrusive buttons.

7am2m sonic - the 7am2m charges through its simple base, though it doesn't include...
The 7AM2M charges through its simple base, though it doesn't include a charging block.
Credit: Natalie Kafader

Battery Life


Last but not least is battery life. We thoroughly test this by running each brush for four minutes per day, as you would for your normal brushing routine. We also determined how each device displays battery level and if they indicate when the power is low.

7am2m sonic - the small battery icon on the 7am2m indicates the charge.
The small battery icon on the 7AM2M indicates the charge.
Credit: Natalie Kafader

While the manufacturer claims a downright impressive 90 days of battery life, the 7AM2M Sonic fell short. Instead, the brush lasted 52.5 days. That said, that is still a great battery life. We were impressed by the lasting power of this device, and we wouldn't hesitate to take it on longer trips. There is also an indicator light, clearly showing the battery level. The 7AM2M comes with a small dock and USB charging cord but no outlet brick.

7am2m sonic - in lieu of a charging station, you receive a usb charging cord.
In lieu of a charging station, you receive a USB charging cord.
Credit: Natalie Kafader

Should You Buy the 7AM2M Sonic?


If your priorities are long battery life, unique color choices, and you're sticking to a budget, the 7AM2M is worth considering. It has a few added features, like a two-minute timer and clearly marked modes. Unfortunately, it's delivered lackluster results in our cleaning and comfort tests.

7am2m sonic - we had some minor trouble reaching those back molars due to the size...
We had some minor trouble reaching those back molars due to the size of the brush head.
Credit: Natalie Kafader

What Other Electric Toothbrushes Should You Consider?


If you're searching for minimalism, the Quip is worth taking a look at. This electric option closely resembles a manual toothbrush yet has some power to back it up. It is budget-friendly and can be set up with a subscription plan to automatically send you new brush heads and replacement batteries. You can also find more simplistic options in our best toothbrush review. However, if the bells and whistles sound nice, you can't go wrong with the Oral-B iO Series 9. This smart option pairs with a mobile app that gives a live look into your brushing performance, showing what percentage of brushing coverage you've actually given your teeth.

Genaveve Bradshaw and Ryan White