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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

Smile M5

AlphaESS

63/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-07-31

LFP100% Usable5 kWh Modular
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

MeasureSmile M5Smile G3 S5
Capacity & Usability90 / 10086 / 100
Power & Efficiency58 / 10080 / 100
Longevity (verified)60 / 10070 / 100
Safety & Chemistry69 / 10087 / 100
Guarantee & Backbone56 / 10078 / 100
Energy Ecosystem52 / 10067 / 100

Capacity & Usability

Smile M5
90 / 100
Smile G3 S5
86 / 100

Power & Efficiency

Smile M5
58 / 100
Smile G3 S5
80 / 100

Longevity (verified)

Smile M5
60 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

Smile M5
69 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

Smile M5
56 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

Smile M5
52 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureSmile M5Smile G3 S5
Published usable capacity range13.99–27.98 kWh8.2–60.5 kWh
Scored benchmark13.99 kWh9.6 kWh
ChemistryLFPLFP
Power5.0 kW5 kW
Round-tripNot recorded95 %
Cycle lifeNot recorded10,000 cycles

Published usable capacity range

Smile M5
13.99–27.98 kWh
Smile G3 S5
8.2–60.5 kWh

Scored benchmark

Smile M5
13.99 kWh
Smile G3 S5
9.6 kWh

Chemistry

Smile M5
LFP
Smile G3 S5
LFP

Power

Smile M5
5.0 kW
Smile G3 S5
5 kW

Round-trip

Smile M5
Not recorded
Smile G3 S5
95 %

Cycle life

Smile M5
Not recorded
Smile G3 S5
10,000 cycles
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 15 points.
Strongest dimensionsSmile M5: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Power & Efficiency (22 points).
Evidence coverageSmile M5: 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.