Utility
There's no obvious winner between the Subaru and the SX4 regarding hauling capacity.
Neither the Suzuki SX4 nor the Subaru Forester has a marked advantage regarding seating capacity.
Dimensions
Your wallet will hurt more every time you fill up the Subaru Forester than the Suzuki SX4 because of its bigger tank.
The Subaru Forester rides lower than the Suzuki, which is a good thing for its center of gravity and ease of access.
The Suzuki SX4 and the Subaru Forester compete for the same parking spaces.
Convenience
The Suzuki SX4's fuel tank will need to be replenished more often than the unit in the Subaru Forester.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs about the same to get the Suzuki SX4 to the dealership as the Subaru Forester.
The Subaru doesn't pale in comparison to the SX4 in terms of fuel economy.
The SX4 won't save you much money at the pump compared to the Subaru Forester.
The Suzuki SX4 is tremendously less costly than the Forester with respect to MSRP.
Handling
The Subaru Forester and the Suzuki SX4 have about similar tires.
With their similar turning circles, the Subaru Forester and the Suzuki doubtless handle roughly the same into and out of tight spots.
Drivetrain
The Subaru's engine is markedly larger than the Suzuki SX4's. Remember that larger engines may use more gas than smaller ones.
The SX4 could learn a lesson or two from the Subaru Forester with respect to torque.
Comfort
While the front cabin in the SX4 offers a bit more head room than the Subaru Forester, there honestly isn't much of a difference.
The ampler interior dimensions of the Suzuki SX4 make it more spacious for your passengers than the Subaru Forester.
Overview
The Forester and the Suzuki SX4 have the same basic after-sale protection.