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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

Three Phase 10

NeoVolt

69/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-08-01

LFPHigh Power 10kW+5 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

MeasureThree Phase 10Smile G3 S5
Capacity & Usability84 / 10086 / 100
Power & Efficiency80 / 10080 / 100
Longevity (verified)76 / 10070 / 100
Safety & Chemistry78 / 10087 / 100
Guarantee & Backbone43 / 10078 / 100
Energy Ecosystem51 / 10067 / 100

Capacity & Usability

Three Phase 10
84 / 100
Smile G3 S5
86 / 100

Power & Efficiency

Three Phase 10
80 / 100
Smile G3 S5
80 / 100

Longevity (verified)

Three Phase 10
76 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

Three Phase 10
78 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

Three Phase 10
43 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

Three Phase 10
51 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureThree Phase 10Smile G3 S5
Published usable capacity range4.6–27.6 kWh8.2–60.5 kWh
Scored benchmark9.2 kWh9.6 kWh
ChemistryLFPLFP
Power10.0 kW5 kW
Round-trip96 %95 %
Cycle life8,000 cycles10,000 cycles

Published usable capacity range

Three Phase 10
4.6–27.6 kWh
Smile G3 S5
8.2–60.5 kWh

Scored benchmark

Three Phase 10
9.2 kWh
Smile G3 S5
9.6 kWh

Chemistry

Three Phase 10
LFP
Smile G3 S5
LFP

Power

Three Phase 10
10.0 kW
Smile G3 S5
5 kW

Round-trip

Three Phase 10
96 %
Smile G3 S5
95 %

Cycle life

Three Phase 10
8,000 cycles
Smile G3 S5
10,000 cycles
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 9 points.
Strongest dimensionsThree Phase 10: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Guarantee & Backbone (35 points).
Evidence coverageThree Phase 10: 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.