Osprey Porter 46 vs. STM Prime

Two carry-on travel backpacks, compared spec for spec.

Osprey Porter 46

Front facing view of the Osprey Porter 46
Capacity46 L
Weight1.5 kg
Dimensions56×36×23 cm
Airline fit47%
Price$150

Feature by feature

Osprey Porter 46FeatureSTM Prime
Storage
S Compression 0
None Expanded Capacity None
4 Opening 0
N Passport top
N Passthrough N
Carry
H Backpack Y
H Hip Belt N
H Sternum Strap Y
Inside
1 Laptop 13
3 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
0 Water Bottle Holder 2 side
Y Water Resistant Y
Material
NylonPolyester

STM Prime

Front facing view of the STM Prime
Capacity15 L
Weight0.7 kg
Dimensions42×26×13 cm
Airline fit100%
Price$80

We're breaking down the key differences between two top-of-the-line backpacks today, the Osprey Porter 46 and the STM Prime. Both packs have their strengths, but they appeal to different types of travelers.

The first competitor in the ring is the Osprey Porter 46, a behemoth of a bag that provides plenty of space for those who can never pack light. The main compartment clocks in at a hefty 46 liters of capacity, and the design is hotel-friendly. It's made of durable nylon and features a laptop compartment that can accommodate up to a 15" laptop. However, with larger size comes greater weight (1.5 lbs) and a reduced compatibility with airlines (47%).

The STM Prime is our second contender, significantly smaller and lighter than the Porter. The Prime offers a capacity of 15 liters, ideal for light packers or short trips, and is made of polyester. This pack offers 100% compatibility with airlines and can house a 13" laptop in its dedicated compartment. Its reduced size doesn't significantly sacrifice features; however, it cannot match the Porter's spaciousness.

Both backpacks have received glowing reviews, with users highlighting the Porter's impressive capacity and durability, and the Prime's lightweight design and supreme compatibility. When making your choice, consider what's more important: space or weight and portability. Overall, both bags have strong perks, and it all depends on what type of traveler you are.