CoreScore breakdown
0 reviews · 0 expert tests
AdidasAdizero Ubersonic 4
Speed for the fastest players.
Best for
Not ideal for
Verdict
The Adidas Adizero Ubersonic 4 is a high-performing option in its class — a speed — all courts scoring 86/100 in SoleHunt's data-driven evaluation, drawing on 0 consumer reviews and 0 independent expert tests. Tipping the scales at 284g, it is standard weight for a speed — all courts. The 21mm heel stack — a minimal stack — delivers a medium-firm ride at 34 HC, returning 62% of impact energy and feeling responsive and lively underfoot. Geometrically, the Adizero Ubersonic 4 runs on a near-zero 0mm drop built for natural gait and forefoot-first runners, with a 21mm forefoot stack that creates a naturally ground-hugging feel. Fit-wise, the toebox measures 90mm — medium-width, comfortable for most foot shapes — and the upper comes in a standard width. Runs slightly narrow. Half size up. The removable insole makes it compatible with custom orthotics. It is designed for speed players, all-court, baseline players, aggressive movers, and performs less well for comfort-first players or wide feet.
Lab measurements
Weight
284g
UK size 9 men's
Heel drop
0mm
Zero drop
Heel stack
21mm
Forefoot stack
21mm
Midsole hardness
34HC
Medium
Energy return
62%
Higher = bouncier
Toebox width
90mm
Breathability
76/100
Outsole grip
85/100
Flexibility
60/100
Heel counter
3/5
Ankle hold
Sustainability
16%
Recycled content
Fit guide
Sizing specs
Best for
Not ideal for
Price tracker
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Construction
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Common complaints
Signals
Synthesized from common user reports via AI analysis. Confidence-weighted.