Home//Compare//JBL PartyBox Portable Speaker vs Marshall Stanmore II Bluetooth Speaker

JBL PartyBox Portable Speaker vs Marshall Stanmore II Bluetooth Speaker — Which Is Better?

Smart Speaker · Updated July 2026 · Live prices
JBL PartyBox Stage 320 - Portable party speaker with wheels - Black
A
JBL PartyBox Portable Speaker
JBL
★★★★★ 4.7 · 457 reviews
$629.95
View deal →
Overall Winner
Marshall STANMOREIIIC Stanmore III Bluetooth Speaker System - Cream
B
Marshall Stanmore II Bluetooth Speaker
Marshall
★★★★★ 4.6 · 237 reviews
$249.99
was $379.99
View deal →

Pros & cons

JBL PartyBox Portable Speaker
Loud and clear sound for outdoor parties
Easy to move around with wheels
Long battery life for extended use
Durable design for rough handling
Bass can be overwhelming at high volumes
No water resistance
Limited equalizer options
Marshall Stanmore II Bluetooth Speaker
Rich, balanced sound
Long battery life
Durable construction
Easy to use
No water resistance
No microphone for calls
Bass could be stronger

Universal Composite Score

JBL PartyBox Portable Speaker
74/100
VS
Marshall Stanmore II Bluetooth Speaker
84/100
Quality & Performance (45%)
94%
93%
Reliability & Confidence (25%)
77%
68%
Value Metric (20%)
60%
74%
Deal Timing (10%)
0%
100%

Quick verdict

Overall Winner
Marshall Stanmore II Bluetooth Speaker
Best Value
Marshall Stanmore II Bluetooth Speaker
Best Rated
JBL PartyBox Portable Speaker
Most Reviewed
JBL PartyBox Portable Speaker
TL;DR
  • Composite pick (demand + value + deal): Marshall Stanmore II Bluetooth Speaker.
  • If price matters most, the Marshall Stanmore II Bluetooth Speaker offers better value at $249.99.
  • The JBL PartyBox Portable Speaker has more verified reviews.

Winner by category

CategoryJBL PartyBox Portable SpeakerMarshall Stanmore II Bluetooth SpeakerWinner
ValueMarshall Stanmore II Bluetooth Speaker$379.96 cheaper
RatingJBL PartyBox Portable Speaker4.7★
ReliabilityJBL PartyBox Portable Speaker457 reviews
Deal ScoreMarshall Stanmore II Bluetooth Speaker100/100
OverallMarshall Stanmore II Bluetooth SpeakerRating × Reviews

Price comparison

JBL PartyBox Portable Speaker
$629.95
Lowest ever: $449.95
0/100
Difference
$379.96
Marshall Stanmore II Bluetooth Speaker
$249.99
Lowest ever: $249.99
100/100

Price history

JBL PartyBox Portable SpeakerMarshall Stanmore II Bluetooth Speaker
A lowest ever$449.95
B lowest ever$249.99
Current A$629.95
Current B$249.99

Price intelligence

◆ HawkShift AI
30 scans
Every 0.8d avg
Current Price
$629.95
Predicted 7D
$599.95
$30.00 (4.76%)
Predicted 30D
$599.95
$30.00 (4.76%)
AI Signal
Wait
44% confidence
Price
EMA
LOESS
Forecast
Price Intelligence
TrendDOWN
Confidence44%
Volatility28.3%
Data QualityHigh
Scan Freq0.8d
Key Levels
Resistance$618.75
Support$551.25
All-Time High$629.95
All-Time Low$449.95
AI Factors
🌙 SeasonalNone
🏷 Promo 7D85%
📅 Next Event
Back to School
Recommendation
High probability of sale event in next 7 days
Price Range
$449.95$629.95
100th percentile
Confidence Intervals
7 Day
$564.03$599.95
30 Day
$516.14$599.95
Trend Strength
0.68Moderate
R² SCORE
Price Momentum
0.00%
vs last 7 scans
◆ HawkShift Price Intelligence · Predictions updated every scan
◆ HawkShift AI
30 scans
Every 0.8d avg
Current Price
$249.99
Predicted 7D
$379.99
$130.00 (52.00%)
Predicted 30D
$379.99
$130.00 (52.00%)
AI Signal
Wait
23% confidence
Price
EMA
LOESS
Forecast
Price Intelligence
TrendDOWN
Confidence23%
Volatility20.7%
Data QualityHigh
Scan Freq0.8d
Key Levels
Resistance$399.99
Support$253.13
All-Time High$399.99
All-Time Low$249.99
AI Factors
🌙 SeasonalNone
🏷 Promo 7D85%
📅 Next Event
Back to School
Recommendation
High probability of sale event in next 7 days
Price Range
$249.99$399.99
0th percentile
Confidence Intervals
7 Day
$363.34$379.99
30 Day
$341.15$379.99
Trend Strength
0.54Moderate
R² SCORE
Price Momentum
0.00%
vs last 7 scans
◆ HawkShift Price Intelligence · Predictions updated every scan

Key specs

SpecJBL PartyBox Portable SpeakerMarshall Stanmore II Bluetooth Speaker
Wireless

Feature differences

JBL PartyBox Portable Speaker has Wheels
Marshall Stanmore II Bluetooth Speaker has Wireless

Performance analysis

Performance

The JBL PartyBox Portable Speaker holds a 4.7★ rating edge.

Value

At $249.99, the Marshall Stanmore II Bluetooth Speaker is $379.96 cheaper.

Reliability

The JBL PartyBox Portable Speaker has more reviews (457).

Overall

Based on rating and review volume, the Marshall Stanmore II Bluetooth Speaker comes out ahead for most buyers.

Who should buy each

Buy the JBL PartyBox Portable Speaker if...
This portable party speaker is a solid choice for its price point, with a high rating and decent review count. It's ideal for those who want a reliable and loud speaker for outdoor gatherings. With a price of $549.95, it's competitive in the electronics category. Buy this if you need a portable and powerful speaker.
○ Wait for a price drop
Buy the Marshall Stanmore II Bluetooth Speaker if...Recommended
This Bluetooth speaker system is a top choice for music lovers, with a high rating and decent review count. At $249.99, it's a solid investment for those seeking quality sound. With a 4.60/5 rating from 237 reviews, it's clear that customers love this product. Buy this if you want a reliable speaker with good sound quality.
○ Wait for a price drop

Frequently asked questions

Which is better: JBL PartyBox Portable Speaker or Marshall Stanmore II Bluetooth Speaker?
Based on our composite score, the Marshall Stanmore II Bluetooth Speaker is the stronger overall choice with a score of 84/100 vs 74/100. That said, the JBL PartyBox Portable Speaker is still a solid product — if it's cheaper or better suited to your use case, it remains a good buy.
Is the price difference between JBL PartyBox Portable Speaker and Marshall Stanmore II Bluetooth Speaker worth it?
The Marshall Stanmore II Bluetooth Speaker is $379.96 cheaper at $249.99. That's a meaningful gap. Unless the pricier JBL PartyBox Portable Speaker offers features you specifically need, the Marshall Stanmore II Bluetooth Speaker is the smarter buy for most people.
Which is more reliable: JBL PartyBox Portable Speaker or Marshall Stanmore II Bluetooth Speaker?
The JBL PartyBox Portable Speaker has been reviewed 457 times — more than the Marshall Stanmore II Bluetooth Speaker's 237 reviews.
Who should buy the JBL PartyBox Portable Speaker vs the Marshall Stanmore II Bluetooth Speaker?
Buyers who want the proven option with stronger overall metrics should go with the Marshall Stanmore II Bluetooth Speaker. Budget-conscious buyers should lean toward the Marshall Stanmore II Bluetooth Speaker at $249.99.
Is now a good time to buy either the JBL PartyBox Portable Speaker or the Marshall Stanmore II Bluetooth Speaker?
Right now the JBL PartyBox Portable Speaker is $629.95 and we expect it to fall — worth waiting; the Marshall Stanmore II Bluetooth Speaker is $249.99 and we expect it to fall — worth waiting. See the full price intelligence for each below.
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