Compare / Oppo Reno15 Pro Max vs vivo X300 Ultra

Oppo Reno15 Pro Max vs vivo X300 Ultra

A side-by-side comparison of the Oppo Reno15 Pro Max and the vivo X300 Ultra, covering display, chipset, memory, camera, battery and build.

Oppo Reno15 Pro Max
Oppo
Oppo Reno15 Pro Max
vivo X300 Ultra
vivo
vivo X300 Ultra

Overview

Display
Oppo Reno15 Pro Max
6.78inch
AMOLED · 120 Hz
1272 × 2772 · 450 PPI
vivo X300 Ultra
6.82inch
LTPO AMOLED · 144 Hz
1440 × 3168 · 510 PPI
Chip
Oppo Reno15 Pro Max
Mediatek Dimensity 8450 (4 nm)
Octa-core (1x3.25 GHz Cortex-A725 & 3x3.0 GHz Cortex-A725 & 4x2.1 GHz Cortex-A725)
Mali-G720 MC7 · Android 16
vivo X300 Ultra
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Adreno 840 · Android 16
Memory
Oppo Reno15 Pro Max
12GB RAM
256 GB · 512 GB storage
No card slot
vivo X300 Ultra
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
Oppo Reno15 Pro Max
200MP Main
50 MP Telephoto
50 MP Ultra Wide
50 MP selfie
4K@30/60fps video
vivo X300 Ultra
200MP Main
200 MP Periscope
50 MP Ultra Wide
50 MP selfie
8K@30fps video
Battery
Oppo Reno15 Pro Max
6,500mAh
80 W wired · 50 W wireless
vivo X300 Ultra
6,600mAh
100 W wired · 40 W wireless
Build
Oppo Reno15 Pro Max
205g
161.3 × 76.5 × 7.7 mm
IP68
vivo X300 Ultra
232g
163 × 76.8 × 8.2 mm
IP68
Connectivity
Oppo Reno15 Pro Max
5GWi-Fi 6Bluetooth 5.4NFCNano-SIM + Nano-SIM + eSIM (max 2 at a time)USB Type-C 2.0
vivo X300 Ultra
5GWi-Fi 7Bluetooth 5.4NFCNano-SIM + Nano-SIM + eSIM (max 2 at a time)USB Type-C 3.2

Specifications

Oppo Reno15 Pro Maxvivo X300 Ultra

Oppo Reno15 Pro Max

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands

HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International

HSDPA 850 / 2100 - Asia

4G bands

1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 34, 38, 39, 40, 41, 42, 48, 66 - International

1, 3, 5, 8, 40 - Asia

5G bands

1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA - International

1, 3, 5, 8, 40 SA/NSA - Asia

Speed
HSPA, LTE, 5G

vivo X300 Ultra

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands

1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 48, 66, 71 - Global

1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66 - China

5G bands

1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 75, 77, 78, 79 SA/NSA - Global

1, 2, 3, 5, 7, 8, 12, 18, 20, 25, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China

Speed
HSPA, LTE, 5G

Oppo Reno15 Pro Max

Announced
2026, January 02
Status
Available. Released 2026, January 02

vivo X300 Ultra

Announced
2026, March 30
Status
Available. Released 2026, April 03

Oppo Reno15 Pro Max

Dimensions
161.3 x 76.5 x 7.7 mm (6.35 x 3.01 x 0.30 in)
Weight
205 g (7.23 oz)
Build
Glass front (Gorilla Glass Victus 2), aluminum frame, glass back
SIM

· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)

· Nano-SIM + Nano-SIM

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

vivo X300 Ultra

Dimensions
163 x 76.8 x 8.2 mm or 8.5 mm
Weight
232 g or 237 g (8.18 oz)
Build
Glass front, glass back, aluminum frame
SIM

· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)

· Nano-SIM + Nano-SIM

IP68/IP69 dust tight and water resistant (immersible up to 1.5m for 30 min)

Oppo Reno15 Pro Max

Type
AMOLED1B colors120HzHDR10+600 nits (typ)1800 nits (HBM)
Size
6.78 inches, 112.4 cm2 (~91.1% screen-to-body ratio)
Resolution
1272 x 2772 pixels, 19.5:9 ratio (~450 ppi density)
Protection
Corning Gorilla Glass Victus 2

vivo X300 Ultra

Type
LTPO AMOLED1B colors144Hz2160Hz PWMDolby VisionHDR10+HDR Vivid
Size
6.82 inches, 113.0 cm2 (~90.3% screen-to-body ratio)
Resolution
1440 x 3168 pixels (~510 ppi density)
Protection

Armor glass

Ultra HDR image support

Oppo Reno15 Pro Max

OS
Android 16, ColorOS 16
Chipset
Mediatek Dimensity 8450 (4 nm)
CPU
Octa-core (1x3.25 GHz Cortex-A725 & 3x3.0 GHz Cortex-A725 & 4x2.1 GHz Cortex-A725)
GPU
Mali-G720 MC7

vivo X300 Ultra

OS
Android 16, OriginOS 6
Chipset
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
CPU
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPU
Adreno 840

Oppo Reno15 Pro Max

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM

UFS 3.1

vivo X300 Ultra

Card slot
No
Internal

256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM

UFS 4.1

Oppo Reno15 Pro Max

Triple

200 MP, f/1.8, 24mm (wide), 1/1.56", 0.5µm, PDAF, OIS

50 MP, f/2.8, 85mm (telephoto), PDAF, OIS, 3.5x optical zoom

50 MP, f/2.0, 16mm, 116˚ (ultrawide), AF

Features
Color spectrum sensor, LED flash, HDR, panorama
Video
4K@30/60fps, 1080p@30/60/120/240/480fps, gyro-EIS, HDR, OIS

vivo X300 Ultra

Triple

200 MP, f/1.9, 35mm (wide), 1/1.12", 0.7µm, PDAF, gimbal OIS

200 MP, f/2.7, 85mm (periscope telephoto), 1/1.4", 0.56µm, multi-directional PDAF, OIS, 3.7x optical zoom, macro 3.4:1

50 MP, f/2.0, 14mm, 116˚ (ultrawide), 1/1.28", 1.22µm, dual pixel PDAF, OIS

Optional add-on zoom lenses:

200mm, 2.35x optical zoom, OIS, Zeiss optics

400mm, 4.7x optical zoom, OIS, Zeiss optics

Features
Laser AFcolor spectrum sensorZeiss opticsZeiss T* lens coatingLED flashpanoramaHDR3D LUT import
Video
8K@30fps, 4K@24/30/60/120fps (10-bit Log, Dolby Vision HDR), 1080p@30/60/120/240fps, gyro-EIS, HDR10+

Oppo Reno15 Pro Max

Single
50 MP, f/2.0, 18mm, 100˚ (ultrawide), AF
Features
Panorama, HDR
Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR

vivo X300 Ultra

Single
50 MP, f/2.5, 24mm (wide), 1/2.76", 0.64µm, AF
Features
HDR
Video
4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR

Oppo Reno15 Pro Max

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

vivo X300 Ultra

Loudspeaker
Yes, with stereo speakers
3.5mm jack

No

24-bit/192kHz Hi-Res audio

Oppo Reno15 Pro Max

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD, LHDC 5
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 2.0, OTG

vivo X300 Ultra

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless, LHDC 5
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 3.2, OTG, DisplayPort

Oppo Reno15 Pro Max

Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

vivo X300 Ultra

Sensors

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass

Emergency SOS via satellite (calls, messages) - 16GB + 1TB model only

Oppo Reno15 Pro Max

Type
6500 mAh
Charging

80W wired, 13.5W PD, 55W PPS, 100% in 51 min

50W wireless

Reverse wired

vivo X300 Ultra

Type
Si/C Li-Ion 6600 mAh (International) or 6400 mAh (Europe)
Charging

100W wired, PD, PPS, QC, UFCS

40W wireless

Reverse wired

Reverse wireless

Oppo Reno15 Pro Max

Colors
Dusk Brown, Aura Gold
Models
CPH2811

vivo X300 Ultra

Colors
Eclipse Black, Victory Green, Silver
Models
V2547A, V2547DA, V2536A, V2562
Price
€ 1,999.00

Oppo Reno15 Pro Max

Not listed for this device

vivo X300 Ultra

Performance

AnTuTu: 2723497 (v10), 4085695 (v11)

GeekBench: 11494 (v6)

3DMark: 7075 (Wild Life Extreme)

Display
1935 nits max brightness (measured)
Loudspeaker
-24.7 LUFS (Very good)
Battery
Active use score 15:45h

Oppo Reno15 Pro Max

Not listed for this device

vivo X300 Ultra

Energy
Class B
Battery
56:53h endurance, 1200 cycles
Free fall
Class B (180 falls)
Repairability
Class C
Full specs: Oppo Reno15 Pro Max Full specs: vivo X300 Ultra

How the Oppo Reno15 Pro Max and vivo X300 Ultra differ

  • The vivo X300 Ultra has a larger battery, 6600 mAh against 6500 mAh on the Oppo Reno15 Pro Max.
  • The vivo X300 Ultra has the bigger screen, 6.82 inches against 6.78 inches.
  • The vivo X300 Ultra offers more RAM, up to 16 GB against 12 GB.
  • The vivo X300 Ultra is the newer of the two, released in April 2026.

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