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Compare

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

Market context

Global benchmark

Performance & Value

vBox 14

VoltX

61/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-07-31

LFP5 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

MeasurevBox 14Smile G3 S5
Capacity & Usability79 / 10086 / 100
Power & Efficiency66 / 10080 / 100
Longevity (verified)60 / 10070 / 100
Safety & Chemistry76 / 10087 / 100
Guarantee & Backbone43 / 10078 / 100
Energy Ecosystem44 / 10067 / 100

Capacity & Usability

vBox 14
79 / 100
Smile G3 S5
86 / 100

Power & Efficiency

vBox 14
66 / 100
Smile G3 S5
80 / 100

Longevity (verified)

vBox 14
60 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

vBox 14
76 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

vBox 14
43 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

vBox 14
44 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasurevBox 14Smile G3 S5
Published usable capacity range12.4 kWh8.2–60.5 kWh
ChemistryLFPLFP
Power5.4 kW5 kW
Round-tripNot recorded95 %
Cycle lifeNot recorded10,000 cycles
Scored benchmarkNot stated9.6 kWh

Published usable capacity range

vBox 14
12.4 kWh
Smile G3 S5
8.2–60.5 kWh

Chemistry

vBox 14
LFP
Smile G3 S5
LFP

Power

vBox 14
5.4 kW
Smile G3 S5
5 kW

Round-trip

vBox 14
Not recorded
Smile G3 S5
95 %

Cycle life

vBox 14
Not recorded
Smile G3 S5
10,000 cycles

Scored benchmark

vBox 14
Not stated
Smile G3 S5
9.6 kWh
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 17 points.
Strongest dimensionsvBox 14: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Guarantee & Backbone (35 points).
Evidence coveragevBox 14: 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.