Verdict
Head-to-head · Best Cordless Stick Vacuums

Dyson V15 Detect vs Dyson V8

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Dyson V15 Detect comes out ahead by a clear margin (4.7 vs 4.1). The gap is mostly about Pet households and large homes where one tool needs to deep-clean every floor type in a single charge. — read the strengths below before deciding.

Dyson V15 Detect
Higher ratedRanked #1 in Best Cordless Stick Vacuums
Dyson V15 Detect
$749

The V15 Detect is Dyson's flagship cordless and the consensus pick from RTINGS, Vacuum Wars and TechGearLab in 2026. Its 240-AW Hyperdymium motor, laser dust-reveal head, piezo particle sensor and 60-minute swappable battery combine to clean nearly any home in one session. You pay flagship pricing, but no other vacuum in this group matches the raw suction, sensor intelligence or hard-floor visibility.

Strengths
  • 240 air watts of fade-free suction, roughly twice Shark Detect Pro's measured 120 AW
  • Green Fluffy Optic laser head reveals invisible hard-floor dust no other vacuum here matches
  • Piezo particle sensor counts and sizes debris and auto-boosts power when load increases
Watch-outs
  • $749 list price is more than double the Dyson V8 and triple some budget picks
  • Trigger-based switch fatigues the hand on long sessions per several reviewers
  • 4-5 hour recharge with the bundled charger feels long if you only have one battery
Dyson V8
Ranked #4 in Best Cordless Stick Vacuums
Dyson V8
$299

The redesigned V8 keeps everything most buyers wanted from Dyson — sealed HEPA, anti-tangle brushroll and a confident detachable handheld — while dropping the price below $300 on sale. You lose the V15's laser, particle counter and 240 AW headroom, but the V8 cleans short-pile carpet and hardwood reliably for the cost of a budget Shark. It's the value-tier Dyson that actually delivers Dyson cleaning.

Strengths
  • Detangling Motorbar cleaner head solves the V8's old hair-wrap weakness
  • Lightest Dyson cordless at 5.6 lbs handle weight
  • 40-minute Eco runtime is competitive at this price
Watch-outs
  • 115 AW peak suction is less than half the Dyson V15's 240 AW
  • Boost mode lasts only 7-10 minutes per Vacuum Wars and TechGearLab testing
  • 0.53 L bin requires more frequent emptying than the V15's 0.76 L

How they stack up

Dyson V15 Detect

More suction (240 AW) than Shark Detect Pro (120 AW) or Eufy HomeVac S11 Infinity (120 AW) and more refined dust-sensing than the Tineco Pure ONE S15 Pro. Replaces Dyson V8 as the do-it-all pick for buyers who want maximum cleaning capability.

Dyson V8

Cheaper than every other vacuum on this page except the eufy HomeVac S11 Infinity. Less suction than the Tineco Pure ONE S15 Pro and far less than the Dyson V15 Detect, but the only sub-$300 vacuum with full Dyson HEPA sealing and the new detangling Motorbar head.

Specs side-by-side

SpecDyson V15 DetectDyson V8
Suction240 AW115 AW
Battery Life60 min (Eco) / 12 min (Boost)40 min (Eco) / 7-10 min (Boost)
Charging Time4.5 hours4 hours
Dustbin Capacity0.76 L0.53 L
FiltrationFully sealed HEPA (0.1 micron)Sealed HEPA (99.99% particles)
Tools Included7 (Fluffy Optic, Motorbar, Hair Screw, crevice, combination, mini-motorbar, dock)4 (Motorbar, combination, crevice, Hair Screw)
Weight6.8 lbs5.6 lbs
Warranty2-year manufacturer2-year manufacturer
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