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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

SOLIX X1

Anker SOLIX

67/ 100

Very good

Limited evidence coverage · 10%

Evidence checked 2026-06-20

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

MeasureSOLIX X1Smile G3 S5
Capacity & Usability87 / 10086 / 100
Power & Efficiency70 / 10080 / 100
Longevity (verified)65 / 10070 / 100
Safety & Chemistry74 / 10087 / 100
Guarantee & Backbone62 / 10078 / 100
Energy Ecosystem47 / 10067 / 100

Capacity & Usability

SOLIX X1
87 / 100
Smile G3 S5
86 / 100

Power & Efficiency

SOLIX X1
70 / 100
Smile G3 S5
80 / 100

Longevity (verified)

SOLIX X1
65 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

SOLIX X1
74 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

SOLIX X1
62 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

SOLIX X1
47 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureSOLIX X1Smile G3 S5
Published usable capacity range5 kWh8.2–60.5 kWh
ChemistryLFPLFP
Power3.84 kW5 kW
Round-trip95 %95 %
Cycle life6,000 cycles10,000 cycles
Scored benchmarkNot stated9.6 kWh

Published usable capacity range

SOLIX X1
5 kWh
Smile G3 S5
8.2–60.5 kWh

Chemistry

SOLIX X1
LFP
Smile G3 S5
LFP

Power

SOLIX X1
3.84 kW
Smile G3 S5
5 kW

Round-trip

SOLIX X1
95 %
Smile G3 S5
95 %

Cycle life

SOLIX X1
6,000 cycles
Smile G3 S5
10,000 cycles

Scored benchmark

SOLIX X1
Not stated
Smile G3 S5
9.6 kWh
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 11 points.
Strongest dimensionsSOLIX X1: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Energy Ecosystem (20 points).
Evidence coverageSOLIX X1: limited evidence coverage (10%) · 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.