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Energizer Ultimate U660S

Energizer Ultimate U660S
Brand: Energizer
Category: Rumors
  • Display 6.67-inch FHD+ display
  • Camera 64MP dual camera / 25MP front
  • Memory 12GB RAM with 256GB ROM
  • Platform Helio G99 CPU / Android 14

Our Rating

The rating is based on the opinions of users and reliable reviewers.

  • Audio & Multimedia 7 / 10
  • Design, Built Quality 7 / 10
  • Display Quality 8 / 10
  • Camera Quality 8 / 10
  • OS and Usability 9 / 10
  • Battery Performance 6 / 10

This is the Energizer Ultimate U660S. It is a clamshell foldable smartphone, sharing the same design and hardware with the Blackview Hero 10. However, the U660s comes with a 6.67-inches OLED screen, and it is preloaded with Google Android 14 out of the box.

Also, it comes with slightly different camera setup. Though you are still getting two snappers on the rear, but the main sensor is a 64-megapixels, instead of the 108MP used on the Hero 10. Also, the frontal sensor is a 25-megapixel lens, which is slightly lower than the 32-megapixel on Blackview’s version.

All other specifications apart from the ones mentioned above seems to be the same. These includes the presence of the Helio G99 octa-core processor, 12Gb RAM as well as 256GB ROM.

Sadly, the same 3400mAh battery is used here, which seems a little battery to power a 6.67-inch OLED screen with an FHD+ display panel. The device folds vertically in a clamshell design for a compact form factor, it is priced at $499.

Full Specifications and Features


Technology GSM / HSPA / LTE
2G Network Bands GSM 850 / 900 / 1800 / 1900 - SIM 1 and SIM 2
3G Network Bands HSDPA 850 / 900 / 1900 / 2100
4G Network Bands LTE bands:
Speed HSPA 42.2/5.76 Mbps, LTE-A (CA)


Also Known As Unofficial specifications of Blackview Hero 10
Announced Not announced yet
Status Expected released; April 2024


Dimensions Folded: 88.8 x 74.1 x 15 mm
Unfolded: 171.7 x 74.1 x 7 mm
Weight 194 grams
Build Eco leather back / Aluminum frame / Steel hinge
SIM Type Dual SIM (Nano-SIM, dual stand-by)


Display Type Foldable IPS touchscreen / 120Hz refresh / 1000 nits (800 nits Cover display
Size 6.67 inches, (84.62% screen-to-body ratio)
1.32 inches Cover display
Resolution 1080 x 2400 pixels (402 ppi density)
320 x 320 pixels, 352 ppi Cover display


Operating System Android 14
Chipset Mediatek MT8781 Helio G99 (6nm)
CPU Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G57 MC2


RAM + ROM 12GB + 256GB - UFS 2.2
Card Slot No


Camera Type Double Lenses
Camera Sensor(s) Main: 64MP, PDAF
Ultrawide: 8MP, 1/3" size,
Camera Features Autofocus / Continuous shooting / Digital zoom / HDR / Touch focus / Face detection / LED flash
Video Resolution 1080p@30/60fps


Camera Type Single Lens
Camera Sensor(s) 25MP selfie camera
Camera Features FaceID / HDR / AI face Beautification
Video Resolution 1080p@30/60fps


Loudspeaker Yes, with stereo speakers
Speaker Location Chin, below display and within earpiece
Audio Jack Type No


Bluetooth Bluetooth 5.0, A2DP, LE
FM Radio Yes, FM Radio with recording


Battery Capacity Non-removable Li-Po 3400mAh with 33W charger


Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity (incl. for accessories), compass
Colors Black
Box Contents Energizer Ultimate U660S / Charging Brick / USB cable Type-C

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Disclaimer Note

We CANNOT guarantee 100% accuracy for the specification table above.