Oppo A78 4G has better RAM than Samsung Galaxy A23 5G. In terms of display resolution, Samsung Galaxy A23 5G has better resolution of 2408 x 1080 than Oppo A78 4G which has resolution of 2400 x 1080. Both have the same amount of internal memory.
| Name | Oppo A78 4G | Samsung Galaxy A23 5G | 
| RAM | 8 GB | 6 GB | 
|---|---|---|
| Display | 6.43 in | 6.6 in | 
| Internal Memory | 128 GB | 128 GB | 
| Battery | 5000 mAh | 5000 mAh | 
| Camera | 50 MP + 2 MP Dual | 50 MP Quad | 
| Price | Rs. 15499 | Rs. 21999 | 
The launch Date of the first phone is July 10, 2023. The cost of Oppo A78 4G is Rs. 15499. The launch Date of the second phone is January 17, 2023. The cost of Samsung Galaxy A23 5G is Rs. 21999.
Oppo A78 4G has screen size of 6.43 inches which falls short to Samsung Galaxy A23 5G's 6.6 inch screen. Oppo A78 4G has AMOLED Screen type where as Samsung Galaxy A23 5G has Screen type. OPPO's phone has display density of 409 PPI & Samsung's phone has only 400 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 90.8% than Samsung's phone ~ 82.5%. Both mobiles have same aspect ratio of 20:9.
Oppo A78 4G's larger 8 GB RAM is better for playing games and all with respect to Samsung Galaxy A23 5G's lower 6 GB RAM. and both have same Internal Memory of 128 GB.
They both have the same 50 MP + 2 MP Dual Rear Camera. Both of them stand equal in terms of Front Camera Resolution as both have 8 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 13 and the second one on 12 version.
| Name | Oppo A78 4G | Samsung Galaxy A23 5G | 
| General | ||
| Model | A78 4G | A23 | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano SIM | Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | July 10, 2023 | January 17, 2023 | 
| Design | ||
| Dimensions | 73.2 x 160 x 7.9 mm | 76.9 x 165.4 x 8.4 mm | 
| Weight | 180 g | 197 g | 
| Colors | Mist Black , Aqua Green | Black, White, Peach, Blue | 
| Display | ||
| Type | Color AMOLED Screen (16.7 M) | Color PLS LCD (16M Colors) | 
| Touch | Yes | Yes | 
| Size | 6.43 inches, 1080 x 2400 pixels, 90 Hz | 6.6 inches, 1080 x 2408 pixels, 120 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 409 PPI | ~ 400 PPI | 
| Screen to Body Ratio | ~ 90.8% | ~ 82.5% | 
| Glass Type | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 | 
| Features | 100% DCI-P3, 600nits (Typical), 430nits (Typical) | Contrast ratio: 1328:1 (nominal) | 
| Notch | Yes, Punch Hole | Yes, Water Drop Notch | 
| Memory | ||
| RAM | 8 GB | 6 GB | 
| Expandable RAM | Upto 8 GB Extra Virtual RAM | Upto 6 GB Extra Virtual RAM | 
| Storage | 128 GB | 128 GB | 
| Storage Type | UFS 2.2 | |
| Card Slot | Yes, upto 1 TB | Yes, upto 1 TB | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| 5G | Yes | |
| 5G Bands | FDD Sub6: N1(2100), N3(1800), N5(850), N7(2600), N8(900), N28(700), TDD Sub6: N40(2300), N41(2500), N77(3700), N78(3500) | |
| VoLTE | Yes | Yes, Dual Stand-By | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | Wi-Fi 5 (802.11ac) | 802.11 a/b/g/n/ac 2.4G+5GHz, VHT80 | 
| Bluetooth | Yes, v5.0, A2DP, LE, aptX HD | Yes, v5.1 | 
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 | 
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging | 
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, Glonass, Beidou, Galileo, QZSS | 
| Fingerprint Sensor | Yes, In Display | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | accelerometer, gyro, proximity, compass | accelerometer, gyro, compass | 
| 3.5mm Headphone Jack | Yes | Yes | 
| NFC | Yes, Yes (market/region dependent) | |
| IP Rating | IP54 | |
| Dust Resistant | Yes | |
| Extra Features | Dual Stereo Speakers, LPDDR4x RAM | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) PDAF 2 MP ƒ/2.4 (Depth Sensor)  | 50 MP ƒ/1.8 (Wide Angle) 5 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) macro 2 MP ƒ/2.4 (Depth Sensor)  | 
| OIS | Yes | |
| Auto Focus | Yes | Yes | 
| Features | Photos, videos, night, expert, panoramic, portrait, time-lapse, slow-motion, super text, Google lens, extra HD, multi-scene recording, and cute | panorama, HDR | 
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 8 MP ƒ/2 (Wide Angle) Punch Hole, Screen Flash  | 8 MP ƒ/2 (Wide Angle) - USA  | 
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD | 
| Technical | ||
| OS | Android v13 | Android v12 | 
| Custom UI | ColorOS 13.1 | |
| Chipset | Qualcomm Snapdragon 680 | Qualcomm Snapdragon 695 | 
| CPU | 2.4 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor | 
| Core Details | 4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver | 2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver | 
| GPU | Adreno 610 | Adreno 619 | 
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA | 
| Video | Yes | MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM | 
| FM Radio | No | No | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery | 
| Fast Charging | Yes, 67W Fast Charging | Yes, 25W Fast charging |