The SE370 is lighter, longer and carries 250 lb more. The Explorer K2 costs less and tells you less. Both of those sentences matter.
By Scooter M. · Published September 6, 2026 · Last updated September 6, 2026
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This is the comparison that decides most first tandem purchases, and it is not really a comparison of two boats. It is a comparison of two disclosure policies that happen to have kayaks attached to them.
Both boats exist, both are currently sold, and both will float two adults on a lake. But one of them tells you what you are buying and the other does not, and once you have looked at a few spec sheets in this category that stops feeling like a detail.
The short version
650 lb rated capacity against 400 lb, from a hull that is also 4.96 lb lighter.
The SE370 publishes working pressure, chamber count, packed size and an inflation claim. Intex publishes none of the four.
1.1 psi is the lowest working pressure in our registry, which is why Sea Eagle can claim eight minutes to inflate.
58 linear inches packed clears the 62-inch checked-bag limit. The Explorer K2's packed size is unknown.
The trade for all of it is softness: a 1.1 psi hull is forgiving and slow.
Side by side on published figures
Sea Eagle SE370 and Intex Explorer K2 on their makers' published specifications
Specification
Sea Eagle SE370
Intex Explorer K2
Hull length
12 ft 6 in
10 ft 3 in
Beam
2 ft 10 in
3 ft
Hull weight
32 lb
36.96 lb
Rated capacity
650 lb
400 lb
Working pressure
1.1 psi
Not published
Chambers
3
Not published
Packed size
31 x 19 x 8 in (58 linear in)
Not published
Skin
38 mil Polykrylar (K80 PVC)
Rugged vinyl, I-beam floor
Maker's inflation claim
8 min
Not published
Valves
Five one-way air valves
Boston valve each side
All figures are the manufacturers' own, read on 2 September 2026. Linear inches is our arithmetic on Sea Eagle's published packed dimensions.
The capacity gap is bigger than it looks
Two hundred and fifty pounds sounds like a margin you would never use. Work it through and it is the difference between a boat that has room and one that does not.
Rated capacity is a maximum, not a target -- a boat loaded to its limit sits low, takes water over the sides in any chop and paddles like it is dragging something. Working to two thirds, the SE370 gives you about 433 lb and the Explorer K2 about 267 lb. Two 180 lb adults is 360 lb: comfortably inside the first number and past the second before anybody has packed a lunch. The weight-limits guide works this through for every boat we hold specs for.
What the SE370 gives up
It would be a poor comparison that only ran one way. The SE370's 1.1 psi is the lowest working pressure in our registry, and low pressure means a soft hull: forgiving over a rock, quick to inflate, and slower and more prone to flex than a firmer boat. If you want a hull that holds its shape, the flat-water roundup explains why pressure and length have to be read together.
The bag is bulky too. Fifty-eight linear inches clears the airline limit, but it is a large, heavy roll to move any distance, and nothing about the SE370 is designed for a walk-in put-in.
What neither of them tells you
Both boats leave the same two gaps, and they are worth naming because they apply to every kayak in this category rather than to these two.
Neither publishes a chamber volume, so neither Sea Eagle's eight-minute claim nor Intex's silence can be checked against arithmetic. On the paddle board side of this site we compute inflation times from published volumes; for kayaks that is simply not possible, because not one manufacturer publishes the input. The kayak pump page goes through what that means for choosing a pump.
And neither publishes a warranty term. Across our whole registry of sixteen boats and boards, exactly two products publish one, and both are paddle boards. For a purchase in the hundreds of dollars that is a strange thing for the category to be silent about, and it is a fair question to put to a retailer before you buy either of these.
So which one
Buy the SE370 if you are reasonably confident you will keep paddling. It is more boat on every published axis, it is the one we rank first for beginners, and its disclosure means you can check it against your car, your airline and your own weight before you spend anything.
Buy the Explorer K2 if the honest answer is that you might use it twice. It is the lowest-risk way to find out, and finding out is a legitimate reason to buy a cheap version of something.
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The picks in full
No photoWe have no photograph of this exact model that we can honestly publish
#1 · The better boat, on every published number
Sea Eagle SE370
Twelve and a half feet of boat, 650 lb of capacity, 32 lb of hull, and it runs at 1.1 psi -- the lowest working pressure of anything here, which is why it is also one of the quickest to pump.
It is lighter (32 lb against 36.96), longer (12 ft 6 in against 10 ft 3 in), carries 250 lb more, and it is the only one of the two that publishes a working pressure, a chamber count, a packed size and an inflation-time claim. At 1.1 psi it is also the quickest thing in our registry to pump. The honest con is what that low pressure means on the water: this is a soft, forgiving, unhurried hull rather than a fast one, and the 58-linear-inch bag is a bulky thing to move through an airport.
The trade-off
Low pressure means a soft hull. It is forgiving and it is slow. The packed bag is 31 x 19 x 8 inches -- 58 linear inches, so it checks, but it is a bulky thing to carry through an airport.
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Sea Eagle SE370 published specifications
Weight (hull or board)
32 lb
Weight (full system)
Not published
Packed size
31 x 19 x 8 in
Packed linear inches
58 in
Inflated
12 ft 6 in x 2 ft 10 in
Capacity
650 lb
Working pressure
1.1 psi
Floor pressure
Not published
Volume
Not published
Material
38 mil Polykrylar (K80 PVC)
Chambers
3
Valves
Five one-way air valves
Warranty
Not published
Computed · airline check
58 linear inches and 32 lb. Clears the 62-inch and 50 lb economy checked-bag limits.
No photoWe have no photograph of this exact model that we can honestly publish
#2 · The cheaper way to find out
Intex Explorer K2
The cheapest way into a two-person inflatable, and the spec sheet is the shortest here: Intex publishes an inflated size, a weight and a capacity, and nothing a travel buyer can plan around.
Four hundred pounds of rated capacity and a 3 ft beam for the least money in the category, which is a legitimate answer if you do not yet know whether you will use a kayak. The con is information rather than construction: no published packed size, no working pressure and no chamber count means you cannot check it against a car, an airline or your own expectations before it arrives.
The trade-off
No published packed size and no published working pressure. You are buying 37 lb of vinyl on trust, and you will not know whether it fits your checked bag until it arrives.
#ad We earn a commission if you buy through this link, at no extra cost to you. It never changes the ranking. How this site is funded. Prices checked September 2, 2026.
Is the Sea Eagle SE370 better than the Intex Explorer K2?+
On every specification both manufacturers publish, yes. The SE370 is 4.96 lb lighter, 2 ft 3 in longer, and rated to 650 lb against 400 lb. It also publishes four specifications Intex does not: working pressure (1.1 psi), chamber count (three), packed size (31 x 19 x 8 in) and an inflation-time claim (eight minutes). Whether it is worth the price difference is a separate question we cannot answer, because we do not publish prices we have not verified live.
Why does the SE370 carry so much more weight?+
Hull volume. It is 12 ft 6 in long with 10-inch tubes running at a low 1.1 psi, and that combination displaces considerably more water than the Explorer K2's 10 ft 3 in hull. Length alone does not predict capacity -- the Intex Excursion Pro K2 is an inch longer than the SE370 and rated 250 lb lower.
Can the SE370 really seat three people?+
Sea Eagle sells it as a one-to-three-person boat and rates it to 650 lb, so the rating supports it. Space is the practical limit rather than load: 12 ft 6 in of hull is comfortable for two adults with gear, and three adults is a tighter proposition than the number suggests. Our own guidance is to plan around two thirds of any rated capacity.
Which of these packs smaller?+
The SE370, as far as anybody can tell. It packs to 31 x 19 x 8 inches -- 58 linear inches, inside the 62-inch checked-bag limit. Intex publishes no packed dimensions for the Explorer K2 at all, so there is no honest comparison to make, and that absence is itself the answer for a buyer who needs the boat to fit something specific.
Units we claim to have tested: 0
Everyone in this category says they tested twenty boats. We have not tested any, and we say so. What we did instead: pulled the published specifications and the owner's manuals, computed the pump load and the packed volume for every model that publishes enough to compute them, checked the packed sizes against the airline limits you will actually meet, and cited every page we read. The full method.
Sources
Every specification on this page was read from one of these, on the date shown. Specs change between model years, so the date matters as much as the link.
