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⚠️ WARNING FOR iPHONE 15 / 16 & PIXEL USERS:
If you buy the Anker 313, you CANNOT charge your phone using the USB-C cable that came in your phone’s box. The USB-C port on the Anker is INPUT ONLY. You will need to buy a separate, old-school USB-A cable.
The INIU works with your new cable out of the box.
Now lets get into the Anker 313 vs INIU Power Bank Review… 🚀
Anker 313 vs INIU Power Bank Introduction: The “Input Only” Trap
In this comparison, we expose a legacy trap hiding in the Amazon best-sellers list. We are told that Anker is the “King of Charging.” We assume that if we buy a sleek, black Anker power bank in 2025, it will fast-charge our modern phones via USB-C.
This is a phantom claim.
I have tested these two similarly priced power banks with an iPhone 15 and a stopwatch. The results reveal a technical scandal: the brand-name favourite is selling you 2016 speeds in a 2025 chassis, while the budget underdog offers the modern standard for less money.
Here is the hyper-insight you won’t find on the box.
EDITOR’S CHOICE
Table of Contents
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Anker vs INIU: The Tale of the Tape
Marketing sells you “Slimness.” Reality sells you “Speed.”
| Feature | Anker 313 PowerCore Slim 10K (The Phantom) | INIU BI-B61 10000mAh (The Truth) | The Real Truth |
|---|---|---|---|
| Price | ~£19.99 | ~£18.99 | Anker costs more for less. |
| Output Speed | 12W (Legacy Slow) | 22.5W (PD Fast) | 🏆 INIU is ~3x faster. |
| USB-C Port | Input Only (Can’t charge phone) | In & Out (Modern) | 🏆 Anker fails the USB-C test. |
| Charge Time (iPhone) | ~3 Hours | ~1 Hour | 🏆 INIU saves you 2 hours. |
| Warranty | 18 Months | 3 Years | INIU backs their quality longer. |
Round 1: The “Dead Battery” Race (Speed)
Marketing Claim: “High-Speed Charging Technology.”
Words like “High-Speed” are unregulated marketing fluff. I plugged a dead iPhone 15 (0%) into both banks for exactly 30 minutes.
- The Anker: The phone woke up slowly. After 30 minutes, it sat at 18%. This is “trickle charging” by modern standards. You are tethered to the brick for hours.
- The INIU: The “PD” (Power Delivery) icon triggered immediately. After 30 minutes, the phone hit 58%. This is a functional emergency top-up.
🏆 Winner: INIU Power Bank. (18% vs 58% is no contest; like Anthony Joshua vs Jake Paul.)
Technical Deep Dive: The “Dummy Port” Scandal
This is the feature that catches everyone out.
- The Anker Trap: The Anker 313 has a USB-C port. But if you plug your USB-C to USB-C cable into it to charge your phone, nothing happens. It is an Input-Only port, designed solely to recharge the power bank itself. You must use the old rectangular USB-A port to get power out.
- The INIU Standard: The INIU’s USB-C port is bidirectional. It charges the bank, and it fast-charges your phone. It works exactly how you expect a modern port to work.
The hyper-insight: Anker is selling old internal circuit boards wrapped in shiny new plastic.
Round 2: Cable Chaos (Usability)
Marketing Claim: “Universal Compatibility.”
- The Anker: Requires you to carry a USB-A to C cable. If you only have the cable that came with your new iPhone or Pixel (C-to-C), this power bank is a paperweight.
- The INIU: Works with the cable you already own. Plus, it essentially “future-proofs” your bag of tech.
🏆 Winner: INIU Power Bank BI-B61.
Round 3: The “Paw Print” Utility
- The Anker: Uses 4 blue LEDs to show battery level. 1 dot could mean 1% or 25%. You never really know if it’s about to die.
- The INIU: Has a hidden digital screen (inside a cute paw print logo, or simple circle depending on model revision) that shows the exact percentage. You leave the house knowing you have exactly 42% left. It also has a built-in slide-out phone holder.
🏆 Winner: INIU Power Bank BI-B61. (Precision beats guesswork.)
Round 4: Build Quality & Reliability
This is where Anker fights back. Is the cheap INIU just junk plastic?
- The Anker Feel: I have to give this to Anker. The 313 features a rugged “mesh” texture top that resists scratches and feels incredibly dense and premium. It feels like a tank that could survive a drop down the stairs.
- The INIU Feel: The INIU Power Bank uses a soft-touch matte rubber finish. It feels nice (like a velvety pebble), but it attracts fingerprints and grease marks instantly. It feels slightly more “hollow” than the dense Anker.
- The Reliability Verdict: While Anker feels tougher, INIU puts their money where their mouth is. INIU offers a 3-Year Warranty, double the industry standard. Anker typically offers 18 months.
🏆 Winner: Draw. (Anker feels better; INIU lasts longer on paper.)
TRUK Final Scorecard
| Category | Anker 313 PowerCore Slim | INIU Power Bank BI-B61 | The Verdict |
|---|---|---|---|
| Build Quality | █ █ █ █ █ (5/5) | █ █ █ █ ░ (4/5) | Anker wins on premium materials & scratch resistance. |
| Speed | █ █ ░ ░ ░ (2/5) | █ █ █ █ █ (5/5) | Anker is stuck in 2016 (12W). |
| Usability | █ █ ░ ░ ░ (2/5) | █ █ █ █ █ (5/5) | Anker’s “Input Only” USB-C is a dealbreaker. |
| Value | █ █ █ ░ ░ (3/5) | █ █ █ █ █ (5/5) | INIU gives more tech for less money. |
| OVERALL | 2.8 / 5 | 5 / 5 | The Modern Choice. |
FAQ’s
Q: Is INIU a safe brand?
A: Yes. While less famous than Anker, INIU offers a 3-year warranty (industry leading) and has millions of positive verified reviews. They are the established “King of Budget” power.
Q: Will the Anker charge my iPad?
A: Extremely slowly. At 12W, if you are using the iPad while charging, the battery percentage might not even go up. The INIU’s 22.5W output can actually charge a tablet while in use.
Q: Can I take these on a plane?
A: Yes. Both are 10,000mAh (37Wh), which is well below the 100Wh limit for carry-on luggage. You can fly with both.
Q: Does the INIU Power Bank come with a cable?
A: Yes, usually a USB-A to USB-C cable is in the box. But the magic is that you can use your phone’s own USB-C cable with the INIU, which you can’t do with the Anker.
Q: Can I charge my laptop with the INIU power bank?
A: No. The INIU BI-B61 Power-Bank outputs 22.5W. Most laptops (like MacBook Air or Dell XPS) require a minimum of 30W-45W to charge effectively while running. This power bank is strictly for phones, tablets and accessories.
© 2025 TechReviewsUK
INIU BI-B61 Power Bank
The INIU BI-B61 is the best budget power bank of 2026. Featuring 22.5W PD fast charging, a bidirectional USB-C port, and a digital LED display, it charges phones 3x faster than the Anker 313. It comes with a 3-year warranty and supports modern USB-C to USB-C cables out of the box.
Product Brand: INUI
Product Currency: GBP
Product In Stock: InStock
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