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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Global benchmark

Performance & Value

HM6

ESY SUNHOME

60/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-07-31

LFP
Full scorecard
Performance & Value

Smile G3 S5

AlphaESS

78/ 100

Superior

Moderate evidence coverage · 58%

Evidence checked 2026-07-16

LFPUL9540AVPP-Ready
Full scorecard
Side by side

Score profile

MeasureHM6Smile G3 S5
Capacity & Usability66 / 10086 / 100
Power & Efficiency69 / 10080 / 100
Longevity (verified)60 / 10070 / 100
Safety & Chemistry65 / 10087 / 100
Guarantee & Backbone58 / 10078 / 100
Energy Ecosystem41 / 10067 / 100

Capacity & Usability

HM6
66 / 100
Smile G3 S5
86 / 100

Power & Efficiency

HM6
69 / 100
Smile G3 S5
80 / 100

Longevity (verified)

HM6
60 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

HM6
65 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

HM6
58 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

HM6
41 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureHM6Smile G3 S5
Published nominal capacity range5.12–30.72 kWhNot stated
Scored benchmark10.24 kWh9.6 kWh
ChemistryLFPLFP
Power6.0 kW5 kW
Round-tripNot recorded95 %
Cycle lifeNot recorded10,000 cycles
Published usable capacity rangeNot stated8.2–60.5 kWh

Published nominal capacity range

HM6
5.12–30.72 kWh
Smile G3 S5
Not stated

Scored benchmark

HM6
10.24 kWh
Smile G3 S5
9.6 kWh

Chemistry

HM6
LFP
Smile G3 S5
LFP

Power

HM6
6.0 kW
Smile G3 S5
5 kW

Round-trip

HM6
Not recorded
Smile G3 S5
95 %

Cycle life

HM6
Not recorded
Smile G3 S5
10,000 cycles

Published usable capacity range

HM6
Not stated
Smile G3 S5
8.2–60.5 kWh
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 18 points.
Strongest dimensionsHM6: Power & Efficiency · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Energy Ecosystem (26 points).
Evidence coverageHM6: strong evidence coverage (100%) · Smile G3 S5: moderate evidence coverage (58%)

A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.

Both products are scored in the Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.