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Smartphone comparison

Redmi Note 15 Pro 4G vs Samsung Galaxy Z Flip4 Refurbished

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Redmi Note 15 Pro 4G

Redmi Note 15 Pro 4G

  • 195 g.
  • Screen: 1080 x 2392 pixels (~388 ppi density).
  • Mediatek Helio G200 Ultra (6 nm) processor.
  • Storage: UFS 2.2.
  • 6,500 mAh battery capacity.
KSh 38,500In Stock
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02
Samsung Galaxy Z Flip4 Refurbished

Samsung Galaxy Z Flip4 Refurbished

  • 187 g.
  • About 6.7 inch screen.
  • Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) processor.
  • 8 GB RAM in this version.
  • 512 GB storage in this version.
KSh 39,000In Stock
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2 spaces available

Redmi Note 15 Pro 5GKSh 38,000
Redmi Note 14 Pro 5GKSh 42,000
Samsung Galaxy A37 5GKSh 38,500
Samsung Galaxy A36 5GKSh 40,000
Motorola S50 NeoKSh 37,500
Infinix GT 30 ProKSh 37,800
Tecno Camon 50 4GKSh 34,000
2 of 4 products

Our quick verdict

The Redmi Note 15 Pro 4G has a much bigger battery (6,500 mAh), charges faster (45 W) and runs newer Android 15 with 4 OS upgrades promised, while the Samsung Galaxy Z Flip4 Refurbished offers 1080p recording at up to 240 fps, is slimmer and offers newer Wi-Fi 6.

Weight

Redmi Note 15 Pro 4G
195 g
Samsung Galaxy Z Flip4 Refurbished
187 g

Display

Redmi Note 15 Pro 4G
1080 x 2392 pixels (~388 ppi density)
Samsung Galaxy Z Flip4 Refurbished
1080 x 2640 pixels (~426 ppi density)

Performance

Redmi Note 15 Pro 4G
Mediatek Helio G200 Ultra (6 nm) processor
Samsung Galaxy Z Flip4 Refurbished
Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) processor

Storage

Redmi Note 15 Pro 4G
UFS 2.2
Samsung Galaxy Z Flip4 Refurbished
UFS 3.1

Battery capacity

Redmi Note 15 Pro 4G
6,500 mAh battery capacity
Samsung Galaxy Z Flip4 Refurbished
3,700 mAh battery capacity

Key differences

The main differences to help you choose.

Redmi Note 15 Pro 4G

  • Bigger battery: 6,500 mAh (vs 3,700 mAh).
  • Faster rated wired charging: 45 W (vs 25 W).
  • Higher-resolution main camera: 200 MP (vs 12 MP).
  • Newer Android 15 (vs Android 12).
  • 4 OS upgrades promised.
  • Brighter display: up to 3,200 nits (vs 1,200).

Samsung Galaxy Z Flip4 Refurbished

  • Newer Wi-Fi 6 (vs Wi-Fi 5).
  • Slimmer: 6.9 mm thick (vs 8 mm).
  • Higher frame rates for 1080p recording: up to 240 fps (vs 60 fps).
  • 4K video recording (vs 1080p).
  • 15 W wireless charging.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

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6 priorities selected.
How each product answers the selected priorities
PriorityRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Display6.77-inch OLED display, 120 Hz, 388 ppi6.7-inch OLED display, 120 Hz, 426 ppi
Camera200 MP main camera with OIS12 MP main camera with OIS
PerformanceMediatek Helio G200 Ultra processorQualcomm Snapdragon 8+ Gen 1 processor
StorageUp to 512 GB storage512 GB storage
Battery capacity6,500 mAh battery3,700 mAh battery
Charging45 W wired charging25 W wired, 15 W wireless charging

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
BrandRedmiSamsung
ModelRedmi Note 15 Pro 4GGalaxy Z Flip4
Announced2025, December 182022, August 10
Release statusAvailable. Released 2026, January 06Available. Released 2022, August 25
Model numbers25100RA69GSM-F721B, SM-F721B/DS, SM-F721N, SM-F721U, SM-F721U1, SM-F721W, SM-F7210
Device type / form family—Smartphone

Design

Design specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Dimensions163.2 x 76.3 x 8 mm (6.43 x 3.00 x 0.31 in)Unfolded: 165.2 x 71.9 x 6.9 mm Folded: 84.9 x 71.9 x 15.9-17.1 mm
Weight195 g (6.88 oz)187 g (6.60 oz)
Build materialsGlass front (Gorilla Glass Victus 2), plastic backPlastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame
Form factor—Foldable smartphone

Display

Display specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Display6.77 inches, 110.9 cm2 (~89.1% screen-to-body ratio); AMOLED, 68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak); 6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio)
Screen resolution1080 x 2392 pixels (~388 ppi density)1080 x 2640 pixels (~426 ppi density)
Display protectionCorning Gorilla Glass Victus 2—
Display features68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Display technologyAMOLEDFoldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Display size6.77 inches6.7 inches, 101.5 cm2 (~85.4% screen-to-body ratio)
Refresh rate120Hz120Hz
Brightness3200 nits (peak)—
Pixel density388 ppi—
Screen-to-body ratio89.1% screen-to-body ratio—
Cover display—Super AMOLED, 1.9 inches, 260 x 512 pixels (Gorilla Glass Victus+)

Performance

Performance specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
ProcessorMediatek Helio G200 Ultra (6 nm)Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPUOcta-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPUMali-G57 MC2 (1.1GHz)Adreno 730
User interfaceHyperOS 2—
Software supportup to 4 major OS updates—
Process node6 nm—

Memory & Storage

Memory & Storage specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
RAM8GB, 12GB8GB
Storage256GB, 512GB512GB
Storage technologyUFS 2.2UFS 3.1
Expandable storagemicroSDXC (uses shared SIM slot)No
Memory configurations256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM—

Cameras

Cameras specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Rear camera200 MP, f/1.7, 23mm (wide), 1/1.4", 0.56µm, multi-directional PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.06", 1.12µm
Front camera32 MP, f/2.2, 22mm (wide), 1/3.6", 0.61µm10 MP, f/2.4, 26mm (wide), 1/3.0", 1.22µm
Rear camera featuresLED flash, HDR, panoramaLED flash, HDR, panorama
Rear camera video1080p@30/60fps, gyro-EIS4K@30/60fps, 1080p@60/240fps, HDR10+
Front camera video1080p@30fps4K@30fps
Front camera features—HDR

Battery & Charging

Battery & Charging specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
BatterySi/C Li-Ion 6500 mAhLi-Po 3700 mAh
Charging45W wired 18W reverse wired25W wired, 50% in 30 min 15W wireless 4.5W reverse wireless
Battery technologySi/C Li-Ion—
Reverse charging18W reverse wired—

Software

Software specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Operating systemAndroid 15, up to 4 major OS updates, HyperOS 2Android 12, upgradable to Android 16, One UI 8

Network

Network specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
NetworkGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G
SIMNano-SIM + Nano-SIMNano-SIM + eSIM
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66
Network speedHSPA, LTEHSPA, LTE (6CA), 5G
5G bands—1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International SA/NSA/Sub6/mmWave - USA

Connectivity

Connectivity specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
NFCYes (market/region dependent)Yes
Bluetooth5.3, A2DP, LE5.2, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
PositioningGPS, GALILEO, GLONASS, QZSS, BDSGPS, GLONASS, GALILEO, BDS
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
InfraredYes—

Durability

Durability specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Water resistanceIP65 dust tight and water resistant (low pressure water jets)—

Features

Features specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
SensorsFingerprint (under display, optical), accelerometer, proximity, gyro, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
ColorsBlack, Glacier Blue, Titanium—

Audio

Audio specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
LoudspeakersYes, with stereo speakers (with Dolby Atmos)Yes, with stereo speakers
3.5 mm headphone jackNoNo
Audio features24-bit/192kHz Hi-Res audioHigh-bitrate audio support

Tests

Tests specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Measured performanceAnTuTu: 414497 (v10) GeekBench: 1994 (v6) 3DMark: 378 (Wild Life Extreme)—
Measured display1350 nits max brightness (measured)—
Measured loudspeaker-22.5 LUFS (Excellent)—
Measured battery enduranceActive use score 16:24h—

EU label

EU label specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
EnergyClass B—
Battery62:38h endurance, 1000 cycles—
Free fallClass A (270 falls)—
RepairabilityClass C—

Refurbished unit information

Refurbished unit information specifications comparison
SpecificationRedmi Note 15 Pro 4GSamsung Galaxy Z Flip4 Refurbished
Condition—Refurbished / EX-UK

Similarities

  • Both have 120 Hz displays.
  • Both have optical image stabilisation.
  • Both have NFC.
  • Both have stereo speakers.
  • Both charge over USB-C.
  • Both offer up to 512 GB of storage.

In summary

For most buyers the Redmi Note 15 Pro 4G is the better buy; the Samsung Galaxy Z Flip4 Refurbished makes sense if you want 1080p recording at up to 240 fps.

Back to compared products ↑

In-stock alternatives

Samsung Galaxy A37 5GFor Redmi Note 15 Pro 4GSamsung Galaxy A37 5GView product ↗Redmi Note 15 Pro 5GFor Redmi Note 15 Pro 4GRedmi Note 15 Pro 5GView product ↗

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