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Samsung Galaxy A25 5G smartphone in blue-black finish

SAMSUNG

Samsung Galaxy A25 5G SM-A256U 128GB 6GB RAM GSM Unlocked Blue Black cell phones - unlocked

SKU CH-C8TT-EGZNN

Unlocked GSM smartphone with 6.1" AMOLED display, triple 50 MP rear camera, 128 GB storage and 6 GB RAM

  • CPUOcta-core (2 × 2.4 GHz Cortex-A78 & 6 × 2.0 GHz Cortex-A55)
  • Storage drive128 GB
  • ProcessorExynos 1280
  • Connection optionsYes
  • Operating systemAndroid
  • Form factorSmart Phones
  • 5G on 12 supported bands keeps you connected
  • 1" AMOLED screen at 396 ppi shows crisp detail
  • Triple rear camera led by 50 MP sensor captures sharp photos
  • 128 GB storage with 6 GB RAM handles everyday tasks
  • Side-mounted fingerprint sensor unlocks the phone instantly

Samsung Galaxy A25 5G unlocked phone

The Samsung Galaxy A25 5G SM-A256U is an unlocked GSM smartphone with 128 GB of storage and 6 GB of RAM. It operates on 5G bands 1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, and 78 plus LTE on 850, 900, 1800, and 1900 MHz. The device is compatible with AT&T and T-Mobile networks and accepts two Nano SIM cards. A side-mounted fingerprint sensor, accelerometer, gyro, and compass are built in.

Sustained use with AMOLED display and triple camera

The 6.1-inch AMOLED screen runs at 1080 x 2340 pixels with a 19.5:9 aspect ratio and roughly 396 ppi density. The rear triple camera array combines a 50 MP main sensor with an 8 MP and a 2 MP module for varied shooting scenarios. Under continuous load the display and camera subsystem draw power steadily, so battery runtime will reflect extended screen-on time and repeated photo capture rather than brief benchmark bursts.

Check carrier bands and SIM needs before ordering

Verify that your carrier supports the listed 5G and LTE bands for full connectivity. Ensure you have Nano SIM cards ready for the dual-slot tray. The phone arrives in a brown box with a generic charging cable and no wall adapter, so confirm you have a compatible USB power source. Buyers who need CDMA network support or a bundled charger should look elsewhere.

How it compares

Measured against everything we stock in Unlocked Smartphones, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 75% of the 2,409 comparable items (median $168.99).
Storage drive 128 GB
Typical for this category: the median of 1,888 items is 128 GB.

Specifications

Product
Brand nameSamsung
Product lineSamsung Galaxy A25 5G
Model nameSM-A256U
Part numberSM-A256U
Product colorBlack/Blue
Processor
CPUOcta-core (2 × 2.4 GHz Cortex-A78 & 6 × 2.0 GHz Cortex-A55)
ProcessorExynos 1280
Processor chipExynos 1280 (5 nm)
Core configurationOcta-core
CPU clock speed2 × 2.4 GHz Cortex-A78 & 6 × 2.0 GHz Cortex-A55
Memory
RAM capacity6 GB
Storage
Storage drive128 GB
Display
TouchscreenYes
Main screen size6.1 in (15.5 cm)
Screen resolution1080 × 2340 pixels, 19.5:9 ratio
Pixel density~396 ppi density
Display technologyAMOLED
Audio & video
Back cameraTriple 50 MP + 8 MP + 2 MP
Camera flashLED
Video recording1080p@30fps
AutofocusYes
Selfie camera13 MP
Connectivity
Connection optionsYes
Technology typeGSM / HSPA / LTE
Network bands5G: 1, 3, 5, 7, 8, 26, 28, 40, 41, 66, 77, 78 SA/NSA/Sub6
Cellular bands850 / 900 / 1800 / 1900 - GSM
Data connectionLTE
SIM configurationDual SIM Cards
SIM typeNano SIM
Wi-Fi capability802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
BluetoothBluetooth v5.3
Extra connectivityNFC
Built-in GPSYes
Extra radiosWi-Fi/GPS/NFC
3G network850 / 900 / 1700(AWS) / 1900 / 2100 - HSDPA
4G network1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 - LTE
Ports & slots
Expansion slotMicroSDXC
USB portsType-C 2.0
Audio connection3.5 mm jack
Power
Battery capacity5,000 mAh
Battery typeLi-Po Non-removable
Charging options25 W wired
Size & build
Form factorSmart Phones
Overall dimensions161 × 76.5 × 8.3 mm (6.34 × 3.01 × 0.33 in)
Product weight197g (6.95 oz)
Compatibility
Carrier compatibilityAT&T / T-Mobile
In the box
In the boxGalaxy A25 5G, USB Type C-to-C, Ejection Pin, Quick Start Guide
Software
Operating systemAndroid
More details
Built-in sensorsFingerprint (side-mounted), accelerometer, gyro, compass

Questions about this item

How warm does the 6.1" AMOLED screen get during all-day use?

The 6.1" AMOLED panel draws modest power, so the handset stays comfortable during extended sessions; no active cooling is needed.

Which nano-SIM cards must I already have for the dual-SIM tray?

Two nano-SIMs are required — one for each slot — and the phone works on GSM, HSPA and LTE bands including 850, 900, 1800 and 1900 MHz.

Will my existing 5G plan on bands n77 or n78 connect at full speed?

Yes, the modem supports 5G SA/NSA on bands n77 and n78 Sub-6, matching those network deployments.

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