CORE-X4
Excellent condition
Un téléphone reconditionné peut avoir de légères traces d’usage. Il est en très bon état, avec peu de traces d’utilisation sur la coque et des micro-rayures sur l’écran. De plus, le produit est reconditionné selon la méthodologie « CROSSCALL Approved ».
Read all- Fusion4 sensor for 4x more light
- 5GHz chip outperforms WiFi
- 48 MP for sharp photos
Core-X4, the bestseller
Business or personal smartphone? Don't choose. Whether for professional or personal use, opt for the CORE-X4, the latest smartphone in the CORE range and already available as a refurbished model. Combining ergonomics and performance, the CORE-X4 always gives its all and leaves no room for compromise. To deliver all its benefits, it has been inspired by the needs of all professionals, far exceeding what can be expected from a simple phone.
ITS STRENGTHS
Camera
Its 48MP FUSION4 photo lens faithfully captures the beauty of your most intense moments with stunning quality and sharpness.
DURABLE
The CORE-X4 features components renowned for their longevity, so you'll be able to enjoy your CORE-X4 for a long time to come, without having to replace it prematurely.
x-link™ compatible
In addition to charging and data transfer, the X-LINK™ gives you access to a whole range of accessories designed to enhance the CORE-X4 photo/video experience.
Design
The CORE-X4 's design has been crafted to offer maximum ergonomics and style. Its elegant lines make it a pleasure to use every day.

"crosscall approved a quality approach
By creating " CROSSCALL Approved", we are able to offer our users a high level of quality for all our refurbished products. They undergo thorough quality control by experts, guaranteeing you a functional product that retains its original promise. Indeed, during the reconditioning phase, CROSSCALL experts carry out very precise and regular monitoring.
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Manufacturer
Warranty
control
100% optimized packaging!
100% recycled materials for a 100% recyclable pack
To avoid wasting resources, we have deliberately chosen to include fewer accessories in the pack, and to design it according to an eco-design approach.
The charger and charging cable are not included in the packaging.
Not yet equipped? Choose the charger pack.


Ejector
SIM card
Headphones
Waterproof IPX6
and new

Complete your refurbished pack
Would you like to enjoy a CROSSCALL experience that's just like you?
Visit our accessories page to discover our complete range and put together your own customized pack. For every purchase of a refurbished smartphone, we'll give you the 3rd accessory in your customized pack.
useful links
features
All you need to know about the CORE-X4 can be found here:
OUTDOOR TEST FEATURES | |
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IP standard | IP 68 |
Salt water tightness | 2m / 30min |
Dust-tight | Total |
Operating temperature | -25°C / +50°C |
Resistance |
MIL-STD-810G (13 tests) Drop test 6 faces, 2m |
TECHNICAL DATA | |
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Dimensions | 161 x 78 x 13 mm |
Weight | 234 g |
Color | Black |
Operating system | Android™ |
Version |
9.0 PIE Zero Touch and AER |
Processor | OCTO-CORE 1.8GHZ |
Type | Qualcomm® SnapDragon™ 450 |
SAR* Head | 1.37 W/kg |
SAR* Body | 1.45 W/kg |
DAS* Members | 2.67 W/kg |
Languages | Arabic, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Hungarian, Italian, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Russian, Slovak, Slovenian, Spanish, Swedish |
* The Specific Absorption Rate (SAR) quantifies the user's level of exposure to electromagnetic waves for use at the ear. The maximum authorized SAR is 2 W/kg for the head and body, and 4 W/kg for the limbs.
SCREEN | |
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Size | 5,45'' |
Type |
IPS Corning Gorilla® Glass 3 Wet & Glove touch |
IK standard | IK05 |
Tactile | Capacitive display, 5 points |
Resolution | 18:9, 1440x720 HD+, HDTV |
Brightness | 450 cd/m² (0.5 W/m²) |
BATTERY | |
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Type | Li-Ion Polymer |
Capacity | 3850 mAh |
Communication autonomy (2G/3G) | 29h45min |
Standby time (4G) | 465h |
GPS* autonomy | 11h |
* GPS + DATA + GOOGLE mapping activated + 100% brightness screen
The autonomy presented in the technical specifications corresponds to that of the new product (new battery). Each battery is checked to ensure that the phones reconditioned as part of our Crosscall Approved quality approach have a residual charge capacity of at least 80%.
LOADER | |
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Brand | Crosscall |
Model | A121A-050200U-EU3 |
Input voltage | 100-240V ~ |
Input AC frequency | 50/60Hz |
Output voltage | 5,0V ⎓ |
Output current | 2,0A |
Power output | 10,0W |
Average yield in active mode | 80% |
Low-load efficiency (10%) | N/A |
No-load power consumption | 0,084W |
MEMORY | |
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RAM | 3 Go |
Flash | 32 GB |
External (Micro SD) | up to 512 GB |
NETWORK & CONNECTIVITY | |
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SIM | Triple drawer: dual SIM + micro SD |
Type | Nano SIM |
2G (GPRS/EDGE) | 850/900/1800/1900 MHz |
3G (HSPA+) | 850/900/1700/1900/2100 MHz |
4G (LTE) |
FDD-LTE: Band 1(2100) / 2(1900) / 3(1800) / 5(850) / 7(2600) / 8(900) / 20(800) / 28 fullband(700) / 32(1500) 2-CA down only TDD-LTE: Band 38(2600) / 40(2300) |
VoLTE | Compatible* with |
VoWIFI | Compatible* with |
WIFI | 802.11 a/b/g/n/AC 2.4 + 5 GHz |
Bluetooth® technology | 4.2 |
ANT+ | Yes |
NFC | Yes |
USB | 2.0 Fast Charge Type-C |
OTG | Yes |
X-LINK™ | Yes |
** Magconn technology
PHOTO | |
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Sensor | 48 MP Fusion4 |
Autofocus | PDAF |
Front camera | 8 MP |
Flash | LED |
Torch | 0,5W |
Supported formats | JPEG |
VIDEO | |
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Resolution | FHD 1080p @30fps |
Supported formats | MPEG4, H.264, H.265 |
MUSIC | |
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Jack socket | 3.5mm waterproof |
Supported formats | AMR, MIDI, MP3, AAC, WAV |
Micro | Micro waterproof, GORE® membrane |
LOCATION | |
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GPS | Yes |
Type | GPS, A-GPS, Glonass, Beidou, Galileo |
SENSORS | |
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Accelerometer / G-Sensor | Yes |
Proximity sensor | Yes |
Brightness sensor | Yes |
Gyroscope | Yes |
Magnetometer / E-Compass | Yes |
FUNCTIONALITIES | |
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Play Store™ | Yes |
Google Services | Yes |
Free Hand | Yes |
Alarm clock | Yes |
Tape recorder | Yes |
Radio FM | Yes (with built-in antenna) |
Flashlight | Yes |
Customizable multifunction button | Yes, 2 |
QR code reader | Yes |
SOS function | Yes |
PRODUCT QUALITIES AND ENVIRONMENTAL FEATURES | |
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Incorporation of recycled materials | |
Recyclability | |
Presence of precious metals | Contains at least 149 mg of precious metals |
Presence of rare earths | Contains at least 52 mg of rare earths |
Presence of hazardous substances | |
Information on premiums and penalties | This product features premium lithium-cobalt technology |
Substances defined by ANSES | |
Presence of endocrine disruptors |
Quality and environmental characteristics of packaging/notice | |
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Incorporation of recycled materials | Packaging with at least 60% recycled content |
Possibility of re-use | |
Recyclability | Packaging and leaflets mostly recyclable |
Presence of hazardous substances | |
Information on premiums and penalties | Packaging is subject to a premium for the incorporation of recycled materials |
Substances defined by ANSES | |
Presence of endocrine disruptors |
Battery quality and environmental characteristics | |
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Incorporation of recycled materials | |
Recyclability | Most batteries can be recycled |
Presence of hazardous substances | |
Substances defined by ANSES | |
Information on premiums and penalties | This product is subject to a premium linked to lithium-cobalt technology. |