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

Market context

Global benchmark

Inverter

X3-HYB G4 Pro4–15 kW

SolaX | X3-HYB-4.0-P / X3-HYB-5.0-P / X3-HYB-6.0-P / X3-HYB-8.0-P / X3-HYB-10.0-P / X3-HYB-12.0-P / X3-HYB-15.0-P; scored model X3-HYB-15.0-P

Three-phaseHybridEssential-load backup3 MPPTs

74/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-08-16

IP66 Rated
Full scorecard
Inverter

SMILE-M-S Inverter8–9.999 kW

AlphaESS | SMILE-M8-S-INV, SMILE-M9-S-INV and SMILE-M10-S-INV; scored M10 at 9.999 kW local rating

Single-phaseHybridEssential-load backup4 MPPTs

68/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-09-01

Fanless Design
Full scorecard
Side by side

Score profile

marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.

MeasureX3-HYB G4 ProSMILE-M-S Inverter
Efficiency74 / 100 (better value on this row)52 / 100
Design & Flexibility90 / 10096 / 100
Thermal & Physical Resilience76 / 10078 / 100
Features & Integration84 / 10080 / 100
Safety & Compliance87 / 10070 / 100
Guarantee & Backbone62 / 10054 / 100
Energy Ecosystem42 / 10040 / 100

Efficiency

X3-HYB G4 Pro
74 / 100 (better value on this row)
SMILE-M-S Inverter
52 / 100

Design & Flexibility

X3-HYB G4 Pro
90 / 100
SMILE-M-S Inverter
96 / 100

Thermal & Physical Resilience

X3-HYB G4 Pro
76 / 100
SMILE-M-S Inverter
78 / 100

Features & Integration

X3-HYB G4 Pro
84 / 100
SMILE-M-S Inverter
80 / 100

Safety & Compliance

X3-HYB G4 Pro
87 / 100
SMILE-M-S Inverter
70 / 100

Guarantee & Backbone

X3-HYB G4 Pro
62 / 100
SMILE-M-S Inverter
54 / 100

Energy Ecosystem

X3-HYB G4 Pro
42 / 100
SMILE-M-S Inverter
40 / 100
Side by side

Key specifications

marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.

MeasureX3-HYB G4 ProSMILE-M-S Inverter
ArchitectureHybrid inverterHybrid inverter
Published rated AC power range4–15 kW8–9.999 kW
Scored benchmark14.999 kW9.999 kW
Power14.999 kW9.999 kW
TypeHybridHybrid
Peak eff98.0 % (better value on this row)97.47 %
MPPTs34 (better value on this row)

Architecture

X3-HYB G4 Pro
Hybrid inverter
SMILE-M-S Inverter
Hybrid inverter

Published rated AC power range

X3-HYB G4 Pro
4–15 kW
SMILE-M-S Inverter
8–9.999 kW

Scored benchmark

X3-HYB G4 Pro
14.999 kW
SMILE-M-S Inverter
9.999 kW

Power

X3-HYB G4 Pro
14.999 kW
SMILE-M-S Inverter
9.999 kW

Type

X3-HYB G4 Pro
Hybrid
SMILE-M-S Inverter
Hybrid

Peak eff

X3-HYB G4 Pro
98.0 % (better value on this row)
SMILE-M-S Inverter
97.47 %

MPPTs

X3-HYB G4 Pro
3
SMILE-M-S Inverter
4 (better value on this row)
Decision snapshot

Where the comparison separates

OverallX3-HYB G4 Pro leads the global score by 6 points.
Strongest dimensionsX3-HYB G4 Pro: Design & Flexibility · SMILE-M-S Inverter: Design & Flexibility
Largest differenceX3-HYB G4 Pro has the largest pillar edge in Efficiency (22 points).
Evidence coverageX3-HYB G4 Pro: strong evidence coverage (100%) · SMILE-M-S Inverter: strong evidence coverage (100%)

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 Inverter class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.