Compared set
Only 3 of 36 models checked match every need here: “I carry the vacuum between floors”.
3 matching models from 36 checkedBest for this need
Our pick

Start with Soniclean WhisperJet C2 for upstairs hard floors and low-pile rugs within its quarter-inch limit. Its stated 11.5-pound body excludes the hose and wand. Choose SEBO K3 Premium for an electric carpet head with a documented 12-pound body, or K2 Kombi for suction-only cleaning. The half-pound body difference cannot rank the complete carrying load.
Compare explicitly documented canister body weights without mixing shipping and complete-package numbers. Match a lighter body with the right floor tools.
What the facts say
Useful conclusions from the current canister vacuums comparison, followed by the checked facts used to reach them.
Only 3 of 36 models checked match every need here: “I carry the vacuum between floors”.
3 matching models from 36 checkedMatch countThe count uses the current product-to-need assignments for “I carry the vacuum between floors”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Soniclean WhisperJet C2 |
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| |
| SEBO AIRBELT K3 Premium |
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| SEBO AIRBELT K2 Kombi |
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What matters in practice
Keep body-only weights together, and check the upstairs surface before choosing the lighter number.
Only 3 of these 36 records have a verified body-only weight. 3 are 12 pounds or less. The remaining models are unranked here, rather than assumed heavier. Shipping weight and unspecified item weight would make this comparison misleading.
WhisperJet’s 11.5-pound body is half a pound below the K2 and K3’s 12 pounds, about 4.2% of the SEBO body figure. K3 also has an electric head, hose and wand to transport. We do not have matched complete-load measurements, so the percentage is not a carrying-effort or comfort claim.
WhisperJet’s base straight-suction package is intended for hard floors and carpet up to a quarter-inch pile. Its floor and hand turbo brushes are optional extras. If upstairs is mostly deeper carpet with dry pet hair, K3’s powered floor kit addresses that requirement more directly, despite the slightly higher body number.
3 options

Soniclean, WJ-C2
A long-reach bagged canister supplied with a straight-suction floor tool. The base package is specifically intended for hard floors and rugs with pile no longer than a quarter inch.
Winner whenHard floors and thin rugs across a longer cleaning route
Floor and mini turbo tools are optional extras

SEBO, 9687AM / current red 90687AM
A bagged carpet model with suction and brush controls on the handle. The removable ET-1 brushroll is a practical advantage when long hair regularly winds around the floor brush.
Choose instead whenThe upstairs carpet needs a powered head and you want removable-roller access, while accepting the extra equipment beyond its 12-pound body.
The hand turbo brush is an optional extra, so the standard kit does not match its floor brushing with a rotating sofa tool.

SEBO, 9679AM
A bagged option for hard floors and low-pile rugs with a long reach and simple combination head. It shares the K3's 12 lb body, but leaves out the electric carpet assembly.
Choose instead whenSuction-only cleaning is sufficient and you prefer a documented sealed S-class system with a 12-pound canister body.
The hose and wand lack electric wiring, so buying an electric floorhead later does not upgrade this into a K3.
Ready to choose?
Our pick for this need

Explicit 11.5-pound body-only specification
See price & reviews on AmazonChoose instead when

The upstairs carpet needs a powered head and you want removable-roller access, while accepting the extra equipment beyond its 12-pound body.
See price & reviews on Amazon