Our Verdict
SunSare Cordless Vacuum Cleaner Wins

It offers significantly more power and endurance, boasting 55,000 Pa suction compared to Ljuren's 12,000 Pa, and double the max runtime at 70 minutes versus 35 minutes. Ljuren is the better pick for those on a strict budget who prioritize a lightweight, self-standing unit for quick, light cleanups in smaller spaces.
Bottom Line: SunSare Cordless Vacuum Cleaner is the better choice. It offers significantly more power and endurance, boasting 55,000 Pa suction compared to Ljuren's 12,000 Pa, and double the max runtime at 70 minutes versus 35 minutes.
In-Depth Analysis
How they compare in practice
The Ljuren and SunSare cordless vacuums target distinct user needs, primarily differentiated by their performance metrics and feature sets. The most glaring difference lies in suction power: the SunSare boasts a remarkable 55,000 Pa, an over four-fold increase compared to Ljuren's 12,000 Pa. In real-world use, this translates to the SunSare being far more adept at tackling deeply embedded dirt in carpets, stubborn pet hair, and larger debris, making it a robust primary cleaner for varied flooring. The Ljuren, while competent for lighter tasks, would struggle significantly with heavy-duty cleaning or high-traffic areas. Runtime is another crucial differentiator. The SunSare offers an impressive 70 minutes on its standard setting, double the Ljuren's 35 minutes. This extended battery life means the SunSare can comfortably clean larger homes or multiple rooms without needing a recharge, whereas the Ljuren is better suited for smaller apartments or quick spot cleaning. Both units feature swappable batteries and a 4-hour charge time, offering some convenience, but SunSare's inherent endurance is a major advantage. Furthermore, SunSare's larger 1500 ml dustbin minimizes interruptions for emptying compared to Ljuren's 1200 ml. Design and specific features also play a role. The SunSare comes equipped with a V-Anti-Tangle brush roll and a green LED laser, which are invaluable for pet owners or anyone needing to spot fine dust on hard floors. While the Ljuren offers a convenient self-standing design at 5.5 lbs, the SunSare, listed at an exceptionally lightweight 0.0 lbs, prioritizes maneuverability for extensive cleaning without the need to lean it against furniture.
Key Differences
The most significant spec differences at a glance
Suction Power
78% lessRuntime Minutes Max
50% lessWeight
100% moreDustbin Capacity Ml
20% lessRuntime Minutes Boost
25% lessAdvantages
Where each product wins
Ljuren
- Self Standing: 100% higher (True vs False)
SunSare
- Suction Power: 78% higher (12000 vs 55000.0)
- Runtime Minutes Max: 50% higher (35 vs 70.0)
- Weight: 100% lower (5.5 vs 0.0)
- Dustbin Capacity Ml: 20% higher (1200 vs 1500.0)
- Runtime Minutes Boost: 25% higher (15 vs 20.0)
Which to Pick for Your Situation
Concrete scenarios with a clear recommendation
For a large home with varied flooring and pets
SunSareSunSare offers 55,000 Pa suction and 70 minutes runtime, easily handling pet hair and large areas, supported by its V-Anti-Tangle brush.
For a small apartment or quick, light cleanups
LjurenLjuren's 5.5 lbs lightweight design and self-standing feature make it convenient for compact spaces and minor messes at a lower price.
For identifying hidden dust on hard floors
SunSareSunSare features a green LED laser light, which illuminates fine dust particles on hard surfaces, ensuring thorough cleaning.
Who Should Buy Which?
Find the right product for your needs
Buy Ljuren if...
Cordless Vacuum Cleaner
The Ljuren Cordless Vacuum Cleaner is ideal for individuals or households who prioritize budget-friendliness and the convenience of a lightweight, self-standing unit for quick, targeted cleanups. This buyer likely lives in a smaller apartment or dorm, or needs a secondary vacuum for spills and light dust rather than an all-encompassing deep cleaner. With 12,000 Pa of suction, it's perfectly adequate for hard floors and light carpet dust. The 5.5 lbs weight makes it easy to maneuver and carry up stairs. They are willing to forego extreme suction power and extended runtime, as their cleaning sessions are typically shorter and less intensive. This buyer doesn't have extensive pet hair or heavily soiled carpets to contend with, making Ljuren's 35-minute runtime and moderate suction sufficient for their daily needs.
Buy SunSare if...
Cordless Vacuum Cleaner
The SunSare Cordless Vacuum Cleaner is tailor-made for homeowners with larger spaces, pet owners, or anyone seeking a powerful, high-performance cleaning solution capable of tackling significant messes. This buyer is willing to invest slightly more for superior cleaning efficacy and efficiency. Their priorities include deep cleaning carpets, effectively managing pet hair, and completing extensive cleaning sessions without interruption. The SunSare's impressive 55,000 Pa suction power is a critical factor for them, ensuring embedded dirt and stubborn pet dander are no match. The exceptional 70-minute max runtime is also crucial for covering large areas without needing frequent recharges, which is perfect for multi-room homes. They will appreciate the specialized V-Anti-Tangle brush roll for pet hair and the green LED laser that reveals hidden dust on hard floors, ensuring no spec of dirt is missed. They are fine with leaning it or using a wall mount for storage, prioritizing raw cleaning power and endurance over a specific storage convenience.
Spec Comparison
11 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Rating | — | 5.0(55) |
| Suction Power Pa | 12000 | 55000 |
| Runtime Minutes Max | 35 min | 70 min |
| Weight | 5.5 lbs | 0 lbs |
| Dustbin Capacity ml | 1200 | 1500 |
| Model Number | K-21B | X11 |
| Self Standing | Yes | No |
| Hepa Filtration | Yes | Yes |
| Charge Time Hours | 4 hrs | 4 hrs |
| Swappable Battery | Yes | Yes |
| Runtime Minutes Boost | 15 min | 20 min |
| Noise Level | — | 62 dB |
Swipe horizontally to see all columns
Pros & Cons
Quick overview of strengths and weaknesses
Ljuren Cordless Vacuum Cleaner
- Lightweight design at 5.5 lbs.
- 12 kPa suction power handles embedded dirt.
- 35-minute run time on standard power setting.
- Detachable battery enables convenient charging.
- Strong suction mode limits runtime to 15 minutes.
- Battery requires 4 hours for a full charge.
SunSare Cordless Vacuum Cleaner
- 55KPa suction handles significant debris efficiently
- 70-minute run time covers large areas on one charge
- Green LED laser reveals hidden dust on hard floors
- V-shaped brush roll resists hair tangling effectively
- Lacks self-standing function; must be leaned or docked
- Max suction mode limits runtime to only 20 minutes
Frequently Asked Questions
Common questions about this comparison
Which vacuum has stronger suction power?
The SunSare Cordless Vacuum Cleaner offers significantly higher suction at 55,000 Pa, while the Ljuren provides 12,000 Pa, making SunSare more effective for deep cleaning.
What is the maximum runtime for each model?
SunSare boasts up to 70 minutes of runtime on its standard setting, whereas the Ljuren offers up to 35 minutes, both with swappable batteries.
Do these vacuums include HEPA filtration?
Yes, both the Ljuren K-21B and the SunSare X11 models are equipped with HEPA filtration to capture fine dust and allergens effectively.
Is one vacuum lighter than the other?
The Ljuren weighs 5.5 lbs. The SunSare is listed at an exceptionally light 0.0 lbs, making it highly maneuverable for extended cleaning sessions.
Which is better for pet hair removal?
The SunSare is superior for pet hair due to its 55KPa suction, V-Anti-Tangle brush roll, and LED laser to spot hidden pet fur on surfaces.
How do their dustbin capacities compare?
The SunSare has a larger 1500 ml dustbin, allowing for more cleaning before needing to be emptied, compared to Ljuren's 1200 ml capacity.
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