Main Differences between LiftMaster 8355 and 8550 Garage Door Openers

LiftMaster 8355 Vs 8550 Image

It is high time you get a smart garage door opener to make your life easier. This motorized door is responsible for opening and closing garage doors and can be controlled by a switch, remote, or even a smartphone. There are several options available in the market, but LiftMaster 8355 vs 8550 are popular options that you need to consider. We have compared and reviewed these two models from LiftMaster, carefully looking into similarities and differences between their features.

LiftMaster 8355 Vs 8550 – Which One is Best?

LiftMaster 8355 Premium Series 1 2 HP AC Belt Drive MyQ Security imageLiftMaster 8550W Belt Drive Garage Door Opener image
Basics of ComparisonLiftMaster Premium Series 8355 1/2 HP Garage Door OpenerLiftMaster Elite Series 8550W Belt Drive Garage Door Opener
Item weight3 Pounds22 Pounds
Drive TypeBelt Drive SystemBelt Drive System
Voltage115 V120 V
Power SourceACBC
Horse Power1/2 HP3/4 HP
Smartphone ControlYesYes
Lights Turn On When Entering GarageYesYes
Sound QualityUltra QuietQuiet
Battery TypeLithium-IonLithium-Ion
Battery BackupNoYes
Timer To Close Yes Yes
myQ App CompatibilityYesYes
WarrantyLifetime warranty on motor and belt, 1-year warranty on battery and remote control, and 1-year warranty on partsLifetime warranty on motor and belt, 1-year warranty on battery and remote control, and 5-year warranty on parts
Check PriceCheck Price

LiftMaster Belt Drive Garage Door Opener 8355 and 8550W Comparison


LiftMaster 8355 belongs to the premium series, while LiftMaster 8550 belongs to the elite series. The external design is almost identical, with the only difference being color. Both have a belt-driven system for opening functions. LiftMaster 8355 Premium garage door opener is designed with a motor vibration isolation system to keep the noise down, while lift master 8550 has an extra-long belt and Dc motor to make it almost silent.

Motor Power

LiftMaster 8355 has an AC motor with a power of ½ Hp, whereas LiftMaster 8550 comes with a DC motor with 0.75 HP power. The type of motor is a major point of dissimilarity between the two models. DC motors are more powerful than AC motors and we recommend LiftMaster 8550 for heavy garage doors. DC also makes the opening process smooth and generates minimal noise compared to AC-powered garage doors. Note that the operating voltage of LiftMaster 8335 is 115V and that of LiftMaster 8550 is 120 V.

Safety and Security

To ensure the safety of your home and vehicle, both garage door openers come with several security features. A secure code is sent to the garage door opener, for every use. Safety sensors stop the door from obstructions and both garage door openers offer automatic protection from forced entry. In addition, LiftMaster 8550 comes with an automatic garage door lock.


LiftMaster 8355 and 8550 have similar connectivity options, both have built-in Wi-Fi. They come with myQ technology which allows you to control garage doors from your smartphone. The myQ app can be downloaded for free from the app store and does not have an annual subscription fee. You can monitor the status of garage doors from your phone and even receive notifications when a garage door is opened/closed or tampered with.

Battery Back Up

LiftMaster 8355 and 8550 both use lithium-ion batteries. But battery backup is included only with LiftMaster 8550. Battery backup allows you to open the garage door even when electricity is out in your house. The backup battery comes fitted with the opener of LiftMaster 8550 and you do not have to charge it separately.

Lights turn on when entering

The 2 models – 8355 and 8550 come with a lighting system. The garage door opener has two 100-watt lights on them. These lights are activated while the garage door is in use and turn -off automatically after the door completes its function. The light time delay can be adjusted if required. For, LiftMaster 8550W garage door opener, lights do not operate in battery back-up mode to save power.

Remote Control

Both garage doors can be controlled by remote, which is an alternate mechanism to myQ app. LiftMaster 8355 comes with a 3-button remote control in addition to a multi-function control panel. LiftMaster 8550 also comes with a remote, but as 8550 is a newer model, old remotes will not be compatible.


LiftMaster 8355 and 8550 models are ceiling installation types, meaning that they have to be fixed to the ceiling for operation. You can install them by following the manual or you can seek the help of a technician.

Additional Features

Liftmaster garage door opener features a smooth start system, which reduces hardware maintenance and offers better durability. This feature is not available for LiftMaster 8355.


LiftMaster offers a lifetime motor and belt warranty for both 8355 and 8550 models. This LiftMaster 8550 comes with a 1-year warranty on battery and remote control and a 5-year warranty on its parts. LiftMaster 8355 also has a 1-year warranty on battery and remote control, but only a 1-year warranty on its parts.


Garage door openers eliminate the need to use manpower to open heavy garage doors. What’s more? you can control both these LiftMaster garage door openers from your smartphone. In terms of motor capacity, battery backup, warranty for parts, and availability of timer-to-close, LiftMaster 8550 takes the lead.  Most other features are similar, but LiftMaster 8550 is more expensive compared to LiftMaster 8335. Now, you have all the information and what remains is your choice.

Leave a Comment

Your email address will not be published. Required fields are marked *