JBL Portable Waterproof Speaker vs Marshall Stanmore III Bluetooth Speaker — Which Is Better?
Overall Winner
Pros & cons
JBL Portable Waterproof Speaker
✓Bold JBL Pro Sound with AI Sound Boost enhances music quality
✓Up to 16 hours of playtime for extended use
✓Waterproof and drop-proof design for durability
✓Multi-speaker connection via Auracast for wider sound stage
✗No mention of included accessories or carrying case
✗Limited playtime boost of only 2 extra hours
✗No price discount below list price at current time
Marshall Stanmore III Bluetooth Speaker
✓Delivers home-filling sound with wide soundstage
✓Easy pairing with next-generation Bluetooth 5.2
✓PVC-free build with 70% recycled plastic
✓Multiple input options including RCA and 3.5mm aux
✗Lacks complex features for advanced users
✗No mention of water resistance or outdoor use
✗May not fit large spaces due to its size
Composite Score
JBL Portable Waterproof Speaker
62/100
VS
Marshall Stanmore III Bluetooth Speaker
66/100
Amazon Demand (50%)
71%
54%
Value Metric (30%)
55%
64%
Deal Timing (20%)
50%
100%
Quick verdict
Overall Winner
Marshall Stanmore III Bluetooth Speaker
Best Value
JBL Portable Waterproof Speaker
Highest Demand
JBL Portable Waterproof Speaker
Best Deal Timing
Marshall Stanmore III Bluetooth Speaker
TL;DR
- Right now — JBL Portable Waterproof Speaker: $149.95, Amazon BSR #209.
- Right now — Marshall Stanmore III Bluetooth Speaker: $249.99, down from $299.99, near its all-time low ($249.99), Amazon BSR #4,100.
- If price matters most, the JBL Portable Waterproof Speaker is $149.95.
- Stronger Amazon demand: JBL Portable Waterproof Speaker (BSR #209).
- Composite pick (demand + value + deal): Marshall Stanmore III Bluetooth Speaker.
Winner by category
| Category | JBL Portable Waterproof Speaker | Marshall Stanmore III Bluetooth Speaker | Winner |
|---|---|---|---|
| Value | ✓ | — | JBL Portable Waterproof Speaker$100.04 cheaper |
| Demand | ✓ | — | JBL Portable Waterproof SpeakerBSR #209 |
| Deal Score | — | ✓ | Marshall Stanmore III Bluetooth Speaker100/100 |
| Overall | — | ✓ | Marshall Stanmore III Bluetooth SpeakerDemand + value + deal |
Price comparison
JBL Portable Waterproof Speaker
$149.95
Lowest ever: $149.95
50/100
Difference
$100.04
Marshall Stanmore III Bluetooth Speaker
$249.99
Lowest ever: $249.99
100/100
Price history
JBL Portable Waterproof SpeakerMarshall Stanmore III Bluetooth Speaker
A lowest ever$149.95
B lowest ever$249.99
Current A$149.95
Current B$249.99
Key specs
| Spec | JBL Portable Waterproof Speaker | Marshall Stanmore III Bluetooth Speaker |
|---|---|---|
| Waterproof | ✓ | — |
Full specifications
| Spec | JBL Portable Waterproof Speaker | Marshall Stanmore III Bluetooth Speaker |
|---|---|---|
| Color | Blue | Cream |
| Model | JBLFLIP7BLUAM | 1009641 |
| Binding | Electronics | Electronics |
| Depth In | 2.8 | 7.4 |
| Warranty | 1 Year Manufacturer | 1 Year Limited |
| Width In | 7.19 | 13.78 |
| Height In | 2.7 | 7.99 |
| UnitCount | 1 | 1 |
| Weight Lb | 1.23 | 9.4 |
| Dimensions | 7.19"W × 2.8"D × 2.7"H | 13.78"W × 7.4"D × 7.99"H |
| Waterproof | ✓ | — |
| ReleaseDate | 2025-04-06T00:00:01Z | 2022-04-01T00:00:01Z |
| ProductGroup | Electronics | Electronics |
| Brew Strength | ✓ | — |
| ItemPartNumber | JBLFLIP7BLUAM | 1006015 |
| Amazon Sales Rank | 209 | 4100 |
Price intelligence
Feature differences
✓JBL Portable Waterproof Speaker has Waterproof
✓JBL Portable Waterproof Speaker has Brew Strength
Performance analysis
Deal timing
JBL Portable Waterproof Speaker: $149.95, Amazon BSR #209. Marshall Stanmore III Bluetooth Speaker: $249.99, down from $299.99, near its all-time low ($249.99), Amazon BSR #4,100.
Demand
The JBL Portable Waterproof Speaker shows stronger Amazon demand (BSR #209). Best Sellers Rank moves with real purchase volume — we use it instead of star ratings when reviews aren’t available.
Value
At $149.95, the JBL Portable Waterproof Speaker is $100.04 cheaper. That gap is meaningful unless the pricier option has a must-have feature.
Overall
On HawkShift’s Amazon composite (demand + value + deal timing), the Marshall Stanmore III Bluetooth Speaker leads. This is not a star-rating verdict — it’s price and marketplace demand.
Who should buy each
Buy the JBL Portable Waterproof Speaker if...
This portable speaker fits outdoor enthusiasts and music lovers, delivering bold sound with AI Sound Boost and up to 16 hours of playtime. Its waterproof and drop-proof design provides durability. With high demand in this category, it's a solid choice at a fair list price. Consider buying if you need a rugged speaker with good sound quality.
● Good buy
Buy the Marshall Stanmore III Bluetooth Speaker if...Recommended
This home speaker fits music lovers in small to medium spaces, delivering immersive sound with bass and treble controls. It pairs easily with next-generation Bluetooth 5.2. With high demand and a price about 16% below list, it's a compelling option. Buy if you need a straightforward, high-quality speaker.
● Good buy
Alternatives worth considering
Frequently asked questions
Which is better: JBL Portable Waterproof Speaker or Marshall Stanmore III Bluetooth Speaker?
Based on our composite score, the Marshall Stanmore III Bluetooth Speaker is the stronger overall choice with a score of 66/100 vs 62/100. That said, the JBL Portable Waterproof 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 Portable Waterproof Speaker and Marshall Stanmore III Bluetooth Speaker worth it?
The JBL Portable Waterproof Speaker is $100.04 cheaper at $149.95. That's a meaningful gap. Unless the pricier Marshall Stanmore III Bluetooth Speaker offers features you specifically need, the JBL Portable Waterproof Speaker is the smarter buy for most people.
Which has stronger Amazon demand: JBL Portable Waterproof Speaker or Marshall Stanmore III Bluetooth Speaker?
The JBL Portable Waterproof Speaker currently shows stronger Amazon demand (BSR #209), based on Best Sellers Rank.
Who should buy the JBL Portable Waterproof Speaker vs the Marshall Stanmore III Bluetooth Speaker?
Buyers who want the proven option with stronger overall metrics should go with the Marshall Stanmore III Bluetooth Speaker. Budget-conscious buyers should lean toward the JBL Portable Waterproof Speaker at $149.95.
Is now a good time to buy either the JBL Portable Waterproof Speaker or the Marshall Stanmore III Bluetooth Speaker?
Right now the JBL Portable Waterproof Speaker is $149.95, its lowest tracked price; the Marshall Stanmore III Bluetooth Speaker is $249.99 — its lowest tracked price, and our forecast says buy. See the full price intelligence for each below.
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