Dyson V8 vs Shark IZ102: Lighter Dyson or Hair-and-HEPA Shark?

The decision

Choose the Dyson V8 when lower carry weight and a simpler cordless workflow matter more than Shark's sealed-HEPA and removable-battery advantages. Choose the Shark IZ102 when hair-wrap control, Anti-Allergen Complete Seal with HEPA and battery removability are more important than keeping the machine light.

Both sit in the same up-to-40-minute stated runtime class, so this is not a runtime upgrade decision.

What actually separates them

Weight is the strongest everyday difference

Dyson lists the V8 at 2.5kg. Shark lists the IZ102 at 3.4kg. That 0.9kg gap is more decision-relevant on stairs, during repeated lifting and in handheld use than it is while the cleaner head is rolling across the floor.

If handling effort is one of the reasons you are moving to cordless, the V8 has the cleaner case.

Shark has the stronger sealed-filtration proposition

The IZ102 combines Anti-Allergen Complete Seal with HEPA and a self-cleaning brushroll. The V8 uses whole-machine filtration and instead pairs its Motorbar cleaner head with a dedicated Hair screw tool.

That gives Shark the clearer fit when sealed HEPA and reducing brushroll hair maintenance are central needs. Dyson remains credible for hair, but its advantage here is not filtration breadth; it is the lighter machine and its tool ecosystem.

Runtime is effectively a draw; bin size is not

Both manufacturers state up to 40 minutes under their own conditions. PIQSY does not treat those separate test conditions as a controlled endurance tie, but neither product belongs in the long-runtime tier.

The V8 carries a 0.54L bin versus 0.4L for the IZ102. That difference can matter in hair-heavy homes where bulky debris fills a small cordless bin quickly.

Battery design can change the ownership decision

The governed IZ102 record includes a removable battery. The V8's current canonical SV25 record does not carry the same replaceable-battery capability.

That does not make the Shark automatically better, but it gives it a stronger ownership case if battery replacement flexibility is a high priority.

Choose the Dyson V8 when

• lower machine weight matters more than extra filtration features;
• shorter, frequent cleaning sessions suit your home;
• the 0.54L bin and Hair screw tool fit your routine;
• you want a simpler Dyson without premium sensing.

Read the full Dyson V8 Verdict.

Choose the Shark IZ102 when

• sealed HEPA filtration is a priority;
• long or pet hair makes self-cleaning brushroll design attractive;
• a removable battery matters to you;
• you accept the heavier 3.4kg machine and smaller bin.

Read the full Shark IZ102 Verdict.

PIQSY conclusion

This pair is less about brand preference than handling versus ownership features. Pick the V8 for the lighter, simpler machine. Pick the IZ102 for the stronger hair-wrap, sealed-HEPA and removable-battery proposition.

If neither trade-off fits, use PIQSY Match rather than forcing a choice between them.