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verykool s4009 Crystal phone review — specs and Genze score

verykool s4009 Crystal Specifications

Verykool

Released 2017, Jun 15

Mediatek MT6570 (28 nm)

  • 10.7mm thickness
  • Android 6.0
  • 8GB storage, microSDXC

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Genze vs community

Genze and community ratings are both shown on a /10 scale. Genze is derived from internal model scores and price rules; community averages come from approved reviews (1–10 per category).

Category Genze /10 Users /10
Battery 2.3
Display 4.2
Performance 3.1
Camera 3.6
Body 5.2
Gaming 3.6
Software 4.4
Connectivity 1.6
Sensors 7.2
Software updates
Clean software
Heating
Media
Genze total: 3.7/10

Community columns fill in when reviews are approved.

Quick specifications

4.0"

480x800 pixels

5MP

720p

512MB RAM

MT6570

1200mAh

Score breakdown

From specs, price tier & release year

3.7 /10
Performance 3.1/10
Battery 2.3/10
Display 4.2/10
Camera 3.6/10
Body 5.2/10
Gaming 3.6/10
Software 4.4/10
Connectivity 1.6/10
Sensors 7.2/10
1.30 GHz BT 4.0 2017

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Full specifications

Technology GSM / HSPA
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 1900 / 2100
Speed HSPA 21.1/5.76 Mbps
Announced 2017, June. Released 2017, June
Status Discontinued
Dimensions 127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight -
SIM Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Type TFT
Size 4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution 480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS Android 6.0 (Marshmallow)
Chipset Mediatek MT6570 (28 nm)
CPU Dual-core 1.3 GHz Cortex-A7
GPU Mali-400
Card slot microSDXC
Internal 8GB 512MB RAM
Single 5 MP, f/2.4
Features LED flash, panorama
Video 720p@30fps
Single 2 MP
Video
Loudspeaker Yes
3.5mm jack Yes
WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth 4.0, A2DP, LE
Positioning GPS
NFC No
Radio Stereo FM radio
USB microUSB 2.0
Sensors Accelerometer
Type Li-Ion 1200 mAh, removable
Stand-by Up to 150 h (3G)
Talk time Up to 4 h (3G)
Colors Black/Gold
SAR 1.13 W/kg (head) 0.81 W/kg (body)

verykool s4009 Crystal official images

Frequently asked questions

Is verykool s4009 Crystal worth buying in 2026?

verykool s4009 Crystal is worth considering if its strengths match your priorities. Genze scores it 3.7/10 for its class. Read owner reviews and compare alternatives before you buy.

What is the battery capacity of verykool s4009 Crystal?

verykool s4009 Crystal has a 1,200 mAh battery. Real-world endurance depends on chipset efficiency, display, and usage.

What display size does verykool s4009 Crystal have?

verykool s4009 Crystal features a 4.00-inch display. See the Display section for resolution, refresh rate, and panel details.

What is the Genze score for verykool s4009 Crystal?

Genze rates verykool s4009 Crystal 3.7/10 based on performance, display, camera, battery, body build, and value versus phones in the same price tier.

Where do these specifications come from?

Specifications are compiled from official manufacturer and carrier sources, reviewed by our editors where possible, and enriched with Genze scores and community feedback. GenZe Rank is not responsible for errors or omissions. Regional variants, firmware updates, and retailer listings may differ from what is shown here—always confirm critical details on the official product page before you buy.

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Battery

Gaming

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Display

Performance

Heating

Media

Software updates

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