Product
Oppo F31 Pro+
Oppo F31 Pro+
₹37,999
Samsung Galaxy M55s
Samsung Galaxy M55s
₹28,999
Battery
Charging 80W wired, 13.5W PD, 44W UFCS, 33W PPS, 42% in 20 min 10W reverse wired 45W wired
Type Si/C Li-Ion 7000 mAh 5000 mAh
Body
Dimensions 163.1 x 77.6 x 7.7 mm or 7.9 mm 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 195 or 204 g (6.88 oz) 180 g (6.35 oz)
  IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions -
Comms
Bluetooth 5.2, A2DP, LE, aptX HD 5.2, A2DP, LE
Infrared port Yes -
NFC No Yes
Positioning GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No No
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Display
Protection AGC DT-Star D+ -
Resolution 1280 x 2800 pixels, 19.5:9 ratio (~453 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 6.8 inches, 112.8 cm2 (~89.1% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type AMOLED, 1B colors, 120Hz, 1600 nits (HBM) Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2025, September 16 2024, September 24
Status Available. Released 2025, September 16 Available. Released 2024, September 26
Main Camera
Dual 50 MP, f/1.8, (wide), PDAF, OIS 2 MP, f/2.4, (depth) -
Features Color spectrum sensor, LED flash, HDR, panorama LED flash, panorama, HDR
Triple - 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30/60/120fps, gyro-EIS, OIS 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 256GB 8GB RAM, 256GB 12GB RAM 128GB 8GB RAM, 256GB 8GB RAM
  UFS 3.1 -
Misc
Colors Festival Pink, Himalayan White, Gemstone Blue Thunder Black, Coral Green
Models CPH2757 SM-M558B, SM-M558B/DS
SAR 1.16 W/kg (head)     0.99 W/kg (body)     0.93 W/kg (head)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 19, 28, 38, 40, 41, 42, 48 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66
5G bands 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE, 5G HSPA, LTE, 5G
Technology GSM / HSPA / LTE / 5G GSM / HSPA / LTE / 5G
Platform
Chipset Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (1x2.63 GHz Cortex-A715 & 3x2.4 GHz Cortex-A715 & 4x1.8 GHz Cortex-A510) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 720 Adreno 644
OS Android 15, ColorOS 15 Android 14, up to 4 major Android upgrades, One UI 6.1
Selfie camera
Features Panorama -
Single 32 MP, f/2.4, (wide) 50 MP, f/2.4, (wide)
Video 1080p@30fps, gyro-EIS 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack No No
Loudspeaker Yes, with stereo speakers Yes, with stereo speakers
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