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Black rectangular smartphone with 6.5 inch display and triple rear camera module

SAMSUNG

SAMSUNG SM-A037UZKDXAA Galaxy A03s 3GB 32GB 6.5" Black cell phones - unlocked

SKU CH-NCK1-DVNTR MPN SM-A037UZKDXAA

Unlocked 4G LTE smartphone with a 6.5 inch HD+ display, triple rear cameras and a 5000 mAh battery

  • CPUOcta-core 2.3 GHz, 1.8 GHz
  • Storage drive32 GB
  • Connection optionsYes
  • Operating systemAndroid
  • Form factorSmart Phones
  • Technology type4G LTE
  • 5" HD+ display gives room to view content
  • Triple 13 MP rear camera captures detailed photos
  • 5000 mAh battery supports long usage time
  • 3 GB RAM with 32 GB storage handles everyday tasks
  • Unlocked 4G LTE works on many carrier networks

Unlocked 4G LTE smartphone for everyday use

The Samsung Galaxy A03s SM-A037UZKDXAA is an unlocked Android handset built for daily communication and media. It supports a broad range of 2G, 3G and 4G FDD LTE bands including B71 at 600 MHz and B41 TDD LTE at 2500 MHz. Dual Nano SIM slots let you manage two numbers on one device. The 6.5 inch PLS TFT LCD shows content at 720 x 1600 HD+ resolution.

Thermals noise and power in normal use

A 5000 mAh non-removable Li-Po battery powers the octa-core processor running at 2.3 GHz and 1.8 GHz alongside 3 GB of RAM. The large capacity is designed to sustain typical daily workloads such as browsing, messaging and video playback at 1080p 30 fps without frequent recharging. Passive cooling keeps the chassis silent during ordinary operation.

Storage capacity and expansion limit

Internal storage is 32 GB with a dedicated microSD slot that accepts cards up to 1 TB. This ceiling determines how many apps, photos and FHD videos you can keep offline. Buyers who need more onboard space or faster internal storage speeds should consider other models.

How it compares

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

Price $153.99
Cheaper than about 54% of the 2,409 comparable items (median $168.99).
Storage drive 32 GB
Lower than about 95% of the 1,888 comparable items (median 128 GB).

Specifications

Product
Brand nameSamsung
Product lineGalaxy A03s
Model nameSM-A037UZKDXAA
Product colorBlack
Processor
CPUOcta-core 2.3 GHz, 1.8 GHz
Core configurationOcta-core
CPU clock speed2.3 GHz, 1.8 GHz
Memory
RAM capacity3 GB
Storage
Storage drive32 GB
Expandable storageUp to 1 TB
Display
TouchscreenYes
Main screen size6.5 in (16.5 cm)
Screen resolution720 × 1600 (HD+)
Primary display color16M
Display technologyPLS TFT LCD
Audio & video
Back cameraTriple: 13.0 MP + 2.0 MP + 2.0 MP
Camera flashLED
Video recordingFHD (1920 × 1080)@30fps
AutofocusYes
Selfie camera5 MP
SoundPlaying Format:
MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA
Connectivity
Connection optionsYes
Technology type4G LTE
Network bands2G GSM
GSM850, GSM900, DCS1800, PCS1900
3G UMTS
B1(2100), B2(1900), B4(AWS), B5(850), B8(900)
4G FDD LTE
B2(1900), B4(AWS), B5(850), B7(2600), B12(700), B13(700), B14(700), B25(1900), B26(850), B66(AWS-3), B71(600)
4G TDD LTE
B41(2500)
Cellular bandsWi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
SIM configurationDual SIM Cards
SIM typeNano SIM
Second SIM typeNano SIM
Wi-Fi capability802.11 a/b/g/n/ac 2.4+5 GHz
BluetoothBluetooth v5.0
Built-in GPSGPS, Glonass, Galileo
Extra radiosWi-Fi/GPS
Ports & slots
Expansion slotMicroSD (dedicated slot)
USB portsType-C 2.0
Audio connection3.5 mm Stereo
Power
Battery capacity5,000 mAh
Battery typeNon-removable Li-Po Battery
Charging optionsFast Charging
Size & build
Form factorSmart Phones
Overall dimensions6.53 in × 2.99 in × 0.36 in
Product weight7.13 oz
Shipping weight0.91 kg
Package size203 × 102 × 51 mm
In the box
In the boxSamsung, Galaxy A03s, A037U, 32 GB, GSM, CDMA, Unlocked, Android, Smartphone, USA Variant
Software
Operating systemAndroid
More details
Built-in sensorsAccelerometer, Barometer, Fingerprint Sensor, Light Sensor, Proximity Sensor

Questions about this item

How do I insert the Nano SIM cards into the dual SIM tray, and which slot do people often confuse?

Use the ejector pin to open the tray, place each Nano SIM with gold contacts facing down, and note that the second slot is a dedicated microSD slot — not a second SIM slot — which is the common mix-up.

What battery maintenance will the 5000mAh non-removable Li-Po cell need over time?

The sealed 5000mAh battery cannot be user-replaced; expect gradual capacity loss after hundreds of charge cycles, so plan for professional service when runtime drops noticeably.

At what point does the octa-core 2.3 GHz / 1.8 GHz processor throttle during sustained heavy use?

Under continuous load the chipset will hit thermal limits first, reducing clock speeds to manage heat before the 3GB RAM becomes a bottleneck.

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