Both Realme 8 Pro and OPPO K13x 5G (6GB RAM +128GB) comes with same RAM. In terms of display resolution, Realme 8 Pro has better resolution of 2400 x 1080 than OPPO K13x 5G (6GB RAM +128GB) which has resolution of 1604 x 720. Both have the same amount of internal memory.
| Name | Realme 8 Pro | OPPO K13x 5G (6GB RAM +128GB) | 
| RAM | 6 GB | 6 GB | 
|---|---|---|
| Display | 6.4 in | 6.67 in | 
| Internal Memory | 128 GB | 128 GB | 
| Battery | 4500 mAh | 6000 mAh | 
| Camera | 108 MP Quad | 50 MP + 2 MP Dual | 
| Price | Rs. 13990 | Rs. 11999 | 
The launch Date of the first phone is March 24, 2021. The cost of Realme 8 Pro is Rs. 13990. The launch Date of the second phone is June 23, 2025. The cost of OPPO K13x 5G (6GB RAM +128GB) is Rs. 11999.
Realme 8 Pro has screen size of 6.4 inches which falls short to OPPO K13x 5G (6GB RAM +128GB)'s 6.67 inch screen. Realme 8 Pro has Super AMOLED Screen type where as OPPO K13x 5G (6GB RAM +128GB) has Screen type. Realme's phone has display density of 409 PPI & OPPO's phone has only 264 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 89.9% than Realme's phone ~ 83.3%. Both phones have same aspect ratio of 20:9.
Both mobiles come with 6 GB RAM and both have same Internal Memory of 128 GB.
Realme 8 Pro's 108 MP Quad Rear Camera outclasses OPPO K13x 5G (6GB RAM +128GB)'s 50 MP + 2 MP Dual Rear Camera in terms of resolution. Realme 8 Pro will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to OPPO K13x 5G (6GB RAM +128GB)'s 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 11 and the second one on 15 version.
| Name | Realme 8 Pro | OPPO K13x 5G (6GB RAM +128GB) | 
| General | ||
| Country of Origin | India | |
| Model | 8 Pro | K13x | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano+Nano SIM | Nano+Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | March 24, 2021 | June 23, 2025 | 
| In The Box | Handset, Charger, USB Data Cable, Sim Ejector Tool, Quick Guide, Protective Case | |
| Design | ||
| Dimensions | 73.9 x 160.6 x 8.1 mm | 76.2 x 165.7 x 7.9 mm | 
| Weight | 176 g | 194 g | 
| Colors | Midnight Violet, Sunset Peach | |
| Display | ||
| Type | Color Super AMOLED Screen (16.7M) | Color HD+ LCD (16.7 Million) | 
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate | 
| Size | 6.4 inches, 1080 x 2400 pixels | 6.67 inches, 720 x 1604 pixels, 120 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 409 PPI | ~ 264 PPI | 
| Screen to Body Ratio | ~ 83.3% | ~ 89.9% | 
| Glass Type | Corning Gorilla Glass | |
| Brightness | Brightness: 850nit (Normal), 1000nit (HBM) | |
| Features | 10 Touch Points, Contrast Ratio: 1500:1 (Typical), Color Saturation: 83% NTSC, Color Gamut: 88% DCI-P3 (Vivid Mode), 100% sRGB (Natural Mode), Supports Dark Mode, DC Dimming, Supports Eye Comfort, Supports Sunlight Screen | |
| Notch | Yes, Punch Hole | Yes, Punch Hole | 
| Memory | ||
| RAM | 6 GB | 6 GB | 
| Storage | 128 GB | 128 GB | 
| Storage Type | UFS 2.1 | UFS | 
| Card Slot | Yes, upto 256 GB | Yes, (Hybrid Slot), upto 2 TB | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n8/n28B/n40/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | WiFi 5 (802.11 ac), 802.11 b/g/a/n, WLAN 2.4 GHz, WLAN 5 GHz, Dual Band (WiFi 2.4 GHz, WiFi 5 GHz) | |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.4, SBC, AAC, aptX, aptX HD, and LDAC | 
| USB | Yes, USB-C | Yes, USB-C v2.0 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging | 
| Extra | ||
| GPS | yes with A-GPS, Beidou, Glonass, NavIC | Yes, BEIDOU, GPS, GLONASS, GALILEO, QZSS, AGPS | 
| Fingerprint Sensor | Yes, In Display | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | Proximity Sensor, Ambient Light Sensor, E-Compass, Accelerometer | 
| 3.5mm Headphone Jack | Yes | Yes | 
| AI Features | AI Eraser, AI Clarity Enhancer, AI Smart Image Matting 2.0, AI Reflection Remover, AI Unblur, AI Motion, AI Portrait, AI Reimage, AI Summary, AI Writer | |
| Water Resistance | 1.18 m upto 1.05 min | |
| Splash Resistant | Yes | |
| IP Rating | IP65 | |
| Dust Resistant | Yes | |
| Extra Features | Dual-view Video, Outdoor Mode and Glove Touch, Ultra-Volume Mode, Trinity Engine, Screen Translator, Google Gemini App | |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.9 (Wide Angle) 8 MP ƒ/2.3 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor)  | 50 MP ƒ/1.8 (Wide Angle) OV50D, 1/2.88 inch Sensor Size, 0.61um Pixel Size, CMOS(4-in-1), FOV: 76 Degree, Equivalent Focal Length: 27mm, 5P Lens, Effective Focal Length: 3.98mm, PDAF 2 MP ƒ/2.4 (Depth Sensor) 1.75um Pixel Size, CMOS, 1/5 inch Sensor Size, FOV: 89 Degree, Equivalent Focal Length: 22mm, 3P Lens, Effective Focal Length: 1.77mm, Fixed Focus)  | 
| Auto Focus | Yes | Yes | 
| Features | Pro Nightscape, Starry Mode, Super NightScape, Panoramic View, Expert Mode, Timelapse, Portrait Mode, HDR, Ultra Wide-angle Mode, Ultra Macro mode, AI Scene Recognition, AI Beauty, Filter, Chroma Boost, Slow Motion, Bokeh Effect Control | Photo, Video, Portrait, Night, Pro, Panorama, Slo-Mo, Dual View Video, Timelapse, Sticker, Hypertext, Hi-Res, Google Lens, Supports Fill Light for Video Shooting | 
| Video Recording | 4K @ 30 fps UHD, 1080p @ 120 fps FHD, 720p @ 240 fps HD | 1080p @ 60 fps FHD, 720p @ 30 fps HD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 16 MP ƒ/2.5 (Wide Angle) Punch Hole  | 8 MP ƒ/2 (Wide Angle) 1.12um Pixel Size, CMOS, 1/4 inch Sensor Size, FOV: 80 Degree, Equivalent Focal Length: 25mm, 4P Lens, Effective Focal Length: 2.66mm, Fixed Focus Punch Hole  | 
| Front Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 
| Technical | ||
| OS | Android v11 | Android v15 | 
| Custom UI | ColorOS 15 | |
| Chipset | Qualcomm Snapdragon 720G | Mediatek Dimensity 6300 | 
| CPU | 2.3 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor | 
| Core Details | 2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | 
| GPU | Adreno 618 | ARM Mali-G57 MC2 | 
| Java | No | No | 
| Browser | Yes, supports HTML5 | Yes | 
| Multimedia | ||
| Supports | AAC, APE, FLAC, AMR, MIDI, MP3, OGG, WAV, MP2, WMA, IMY, MMF, SND | |
| Yes | Yes | |
| Music | Yes | MP3, AAC, AMR, APE, OGG, FLAC, WAV, MIDI, WMA | 
| Video | MP4, 3GP, ASF, AVI, FLV, MKV,MPG, WEBM | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV, Webm, TS | 
| FM Radio | No | Yes, with FM Recording | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 4500 mAh, Li-Po Battery | 6000 mAh, Li-ion Battery | 
| Fast Charging | Yes, 50W SuperDart Charge | Yes, 45W SUPERVOOCTM Flash Charging |