Further down the page, you'll find some explanations regarding the key similarities and differences between the Sun Joe SPX4600 and the Sun Joe SPX3500.
But before checking out explanations regarding their power, design, and features here's a table that summarizes the main pros of each of these 2 pressure washers:
| Sun Joe SPX4600 | Sun Joe SPX3500 |
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Power Comparison
- Fuel: Both units are electric pressure washers.
- Engine & Pump: The Sun Joe SPX4600 and the Sun Joe SPX3500 both use an axial-type pump to put water under pressure. The Sun Joe SPX4600's pump is powered by a 14.5-amp motor, while the Sun Joe SPX3500 uses a 13-amp motor.
The following charts are provided to show you at a glance how the main specs of the Sun Joe SPX4600 compare to the Sun Joe SPX3500.
- Pressure: With a maximum reachable pressure of 3000 PSI, the Sun Joe SPX4600 provides a much higher force to blast off dirt and grime than the 2300 PSI of the Sun Joe SPX3500.
- Water Flow: When operating at low pressure, the SPX3500 can generate a noticeably higher maximum volume of water than the SPX4600. It can deliver up to 1.48 GPM (gallons per minute), whereas the SPX4600 offers a maximum water flow of 1.3 GPM. The former should thus allow you to rinse away dirt and debris with quite better efficiency and speed.
- Cleaning Power: With its 3900 C.U. (Cleaning Units = PSI x GPM), the Sun Joe SPX4600 offers a higher overall cleaning efficiency than the SPX3500 and its 3404 C.U.
Design Comparison
- Design: With its compact, portable design, the Sun Joe SPX3500 will be the better option if you consider portability, mobility, and ease of storage as important factors, as the Sun Joe SPX4600 can be considered less mobile, with a hand truck design.
- Weight: With an approximate weight of 36.6 lbs, the SPX4600 is slightly less heavy than the SPX3500 (which weighs around 36.8 lbs).
- Maneuverability: Both products benefit from a set of wheels, which greatly contributes to their maneuverability. The SPX4600 has a foam-padded handle and the SPX3500 a standard handle, both of which aid in maneuvering.
Feature Comparison
- Soap Addition: Both washers allow for the addition of chemical detergent solutions to the water. Whether you choose the SPX4600 or the SPX3500, you'll be able to store your cleaning chemicals in the unit's onboard soap tank. However, as the SPX4600 can hold 1 gal of cleaning solution, it benefits from a bigger detergent tank than the SPX3500 and its 0.32 gal tank.
- Trigger Gun & Wand: Each of these 2 units comes with a fairly standard ergonomic trigger gun and a classic wand.
- Nozzles: Out of the box, the SPX3500 and the SPX4600 both come with a 5-nozzle package. The set of included nozzles is the same in either case: 0°, 15°, 25°, 40°, and a soap nozzle.
- Reach: Both products include a 20 ft high-pressure hose. Therefore, neither of them will, out of the box, allow for a higher freedom of movement around the unit. As both units feature a 35 ft power cord, their maximum allowable placement from an electrical outlet is the same.
- Storage: The SPX4600 and SPX3500 both offer onboard storage that allows you to neatly keep the accessories you need at hand. Both washers feature a set of hooks to help you neatly store their high pressure hoses when not in use.
TL;DR
| Sun Joe SPX4600 | Sun Joe SPX3500 |
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| Buy on Amazon (opens in a new tab) | Buy on Amazon (opens in a new tab) |
Show all offers | Show all offers |
